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Finding the Fourth Proportional to 136,081, 187,798.18 and 75,652.64

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Solution

The fourth proportional to 136,081, 187,798.18 and 75,652.64 is: 104,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,081 : 187,798.18 = 75,652.64 : x
  2. Step 2: Convert to fraction form
    136,081/187,798.18 = 75,652.64/x
  3. Step 3: Cross multiply
    136,081x = 187,798.18 × 75,652.64
  4. Step 4: Simplify right side
    136,081x = 14,207,428,104.20
  5. Step 5: Solve for x
    x = 14,207,428,104.20/136,081
  6. Step 6: Final answer
    x = 104,404.20

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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.