Home / 151,899.17-209,616.80-83,905.18

Finding the Fourth Proportional to 151,899.17, 209,616.80 and 83,905.18

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Solution

The fourth proportional to 151,899.17, 209,616.80 and 83,905.18 is: 115,786.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,899.17 : 209,616.80 = 83,905.18 : x
  2. Step 2: Convert to fraction form
    151,899.17/209,616.80 = 83,905.18/x
  3. Step 3: Cross multiply
    151,899.17x = 209,616.80 × 83,905.18
  4. Step 4: Simplify right side
    151,899.17x = 17,587,934,391.46
  5. Step 5: Solve for x
    x = 17,587,934,391.46/151,899.17
  6. Step 6: Final answer
    x = 115,786.91

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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.