Home / 83,208.06-124,892.28-78,712.56

Finding the Fourth Proportional to 83,208.06, 124,892.28 and 78,712.56

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Solution

The fourth proportional to 83,208.06, 124,892.28 and 78,712.56 is: 118,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,208.06 : 124,892.28 = 78,712.56 : x
  2. Step 2: Convert to fraction form
    83,208.06/124,892.28 = 78,712.56/x
  3. Step 3: Cross multiply
    83,208.06x = 124,892.28 × 78,712.56
  4. Step 4: Simplify right side
    83,208.06x = 9,830,591,083.04
  5. Step 5: Solve for x
    x = 9,830,591,083.04/83,208.06
  6. Step 6: Final answer
    x = 118,144.70

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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.