Home / 102,001.90-153,002.85-101,418.70

Finding the Fourth Proportional to 102,001.90, 153,002.85 and 101,418.70

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Solution

The fourth proportional to 102,001.90, 153,002.85 and 101,418.70 is: 152,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,001.90 : 153,002.85 = 101,418.70 : x
  2. Step 2: Convert to fraction form
    102,001.90/153,002.85 = 101,418.70/x
  3. Step 3: Cross multiply
    102,001.90x = 153,002.85 × 101,418.70
  4. Step 4: Simplify right side
    102,001.90x = 15,517,350,143.30
  5. Step 5: Solve for x
    x = 15,517,350,143.30/102,001.90
  6. Step 6: Final answer
    x = 152,128.05

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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.