Home / 296,966.96-445,515.96-86,621.36

Finding the Fourth Proportional to 296,966.96, 445,515.96 and 86,621.36

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Solution

The fourth proportional to 296,966.96, 445,515.96 and 86,621.36 is: 129,951.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,966.96 : 445,515.96 = 86,621.36 : x
  2. Step 2: Convert to fraction form
    296,966.96/445,515.96 = 86,621.36/x
  3. Step 3: Cross multiply
    296,966.96x = 445,515.96 × 86,621.36
  4. Step 4: Simplify right side
    296,966.96x = 38,591,198,356.91
  5. Step 5: Solve for x
    x = 38,591,198,356.91/296,966.96
  6. Step 6: Final answer
    x = 129,951.15

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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.