Home / 133,165.12-183,841.68-90,785.92

Finding the Fourth Proportional to 133,165.12, 183,841.68 and 90,785.92

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Solution

The fourth proportional to 133,165.12, 183,841.68 and 90,785.92 is: 125,334.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,165.12 : 183,841.68 = 90,785.92 : x
  2. Step 2: Convert to fraction form
    133,165.12/183,841.68 = 90,785.92/x
  3. Step 3: Cross multiply
    133,165.12x = 183,841.68 × 90,785.92
  4. Step 4: Simplify right side
    133,165.12x = 16,690,236,053.15
  5. Step 5: Solve for x
    x = 16,690,236,053.15/133,165.12
  6. Step 6: Final answer
    x = 125,334.89

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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.