Home / 102,171,178.80-153,256,768.20-91,085,713.20

Finding the Fourth Proportional to 102,171,178.80, 153,256,768.20 and 91,085,713.20

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Solution

The fourth proportional to 102,171,178.80, 153,256,768.20 and 91,085,713.20 is: 136,628,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,171,178.80 : 153,256,768.20 = 91,085,713.20 : x
  2. Step 2: Convert to fraction form
    102,171,178.80/153,256,768.20 = 91,085,713.20/x
  3. Step 3: Cross multiply
    102,171,178.80x = 153,256,768.20 × 91,085,713.20
  4. Step 4: Simplify right side
    102,171,178.80x = 13,959,502,034,224,080
  5. Step 5: Solve for x
    x = 13,959,502,034,224,080/102,171,178.80
  6. Step 6: Final answer
    x = 136,628,569.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.