Home / 102,001.70-153,002.55-91,115.30

Finding the Fourth Proportional to 102,001.70, 153,002.55 and 91,115.30

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Solution

The fourth proportional to 102,001.70, 153,002.55 and 91,115.30 is: 136,672.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,001.70 : 153,002.55 = 91,115.30 : x
  2. Step 2: Convert to fraction form
    102,001.70/153,002.55 = 91,115.30/x
  3. Step 3: Cross multiply
    102,001.70x = 153,002.55 × 91,115.30
  4. Step 4: Simplify right side
    102,001.70x = 13,940,873,244.02
  5. Step 5: Solve for x
    x = 13,940,873,244.02/102,001.70
  6. Step 6: Final answer
    x = 136,672.95

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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.