Home / 141,516.02-195,320.03-81,127.22

Finding the Fourth Proportional to 141,516.02, 195,320.03 and 81,127.22

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Solution

The fourth proportional to 141,516.02, 195,320.03 and 81,127.22 is: 111,971.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,516.02 : 195,320.03 = 81,127.22 : x
  2. Step 2: Convert to fraction form
    141,516.02/195,320.03 = 81,127.22/x
  3. Step 3: Cross multiply
    141,516.02x = 195,320.03 × 81,127.22
  4. Step 4: Simplify right side
    141,516.02x = 15,845,769,661.98
  5. Step 5: Solve for x
    x = 15,845,769,661.98/141,516.02
  6. Step 6: Final answer
    x = 111,971.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.