Home / 112,700.12-155,337.20-89,966.24

Finding the Fourth Proportional to 112,700.12, 155,337.20 and 89,966.24

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Solution

The fourth proportional to 112,700.12, 155,337.20 and 89,966.24 is: 124,002.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,700.12 : 155,337.20 = 89,966.24 : x
  2. Step 2: Convert to fraction form
    112,700.12/155,337.20 = 89,966.24/x
  3. Step 3: Cross multiply
    112,700.12x = 155,337.20 × 89,966.24
  4. Step 4: Simplify right side
    112,700.12x = 13,975,103,816.13
  5. Step 5: Solve for x
    x = 13,975,103,816.13/112,700.12
  6. Step 6: Final answer
    x = 124,002.56

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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.