Home / 92,001.90-138,002.85-42,138.30

Finding the Fourth Proportional to 92,001.90, 138,002.85 and 42,138.30

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Solution

The fourth proportional to 92,001.90, 138,002.85 and 42,138.30 is: 63,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,001.90 : 138,002.85 = 42,138.30 : x
  2. Step 2: Convert to fraction form
    92,001.90/138,002.85 = 42,138.30/x
  3. Step 3: Cross multiply
    92,001.90x = 138,002.85 × 42,138.30
  4. Step 4: Simplify right side
    92,001.90x = 5,815,205,494.16
  5. Step 5: Solve for x
    x = 5,815,205,494.16/92,001.90
  6. Step 6: Final answer
    x = 63,207.45

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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.