Home / 136,035.28-187,726.12-75,605.20

Finding the Fourth Proportional to 136,035.28, 187,726.12 and 75,605.20

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Solution

The fourth proportional to 136,035.28, 187,726.12 and 75,605.20 is: 104,333.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,035.28 : 187,726.12 = 75,605.20 : x
  2. Step 2: Convert to fraction form
    136,035.28/187,726.12 = 75,605.20/x
  3. Step 3: Cross multiply
    136,035.28x = 187,726.12 × 75,605.20
  4. Step 4: Simplify right side
    136,035.28x = 14,193,070,847.82
  5. Step 5: Solve for x
    x = 14,193,070,847.82/136,035.28
  6. Step 6: Final answer
    x = 104,333.75

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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.