Home / 105,593.22-145,718.64-63,151.75

Finding the Fourth Proportional to 105,593.22, 145,718.64 and 63,151.75

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Solution

The fourth proportional to 105,593.22, 145,718.64 and 63,151.75 is: 87,149.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,593.22 : 145,718.64 = 63,151.75 : x
  2. Step 2: Convert to fraction form
    105,593.22/145,718.64 = 63,151.75/x
  3. Step 3: Cross multiply
    105,593.22x = 145,718.64 × 63,151.75
  4. Step 4: Simplify right side
    105,593.22x = 9,202,387,123.62
  5. Step 5: Solve for x
    x = 9,202,387,123.62/105,593.22
  6. Step 6: Final answer
    x = 87,149.41

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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.