Home / 138,600.30-207,900.45-94,313.55

Finding the Fourth Proportional to 138,600.30, 207,900.45 and 94,313.55

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Solution

The fourth proportional to 138,600.30, 207,900.45 and 94,313.55 is: 141,470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,600.30 : 207,900.45 = 94,313.55 : x
  2. Step 2: Convert to fraction form
    138,600.30/207,900.45 = 94,313.55/x
  3. Step 3: Cross multiply
    138,600.30x = 207,900.45 × 94,313.55
  4. Step 4: Simplify right side
    138,600.30x = 19,607,829,486.10
  5. Step 5: Solve for x
    x = 19,607,829,486.10/138,600.30
  6. Step 6: Final answer
    x = 141,470.33

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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.