Home / 136,008.45-187,680.92-75,578.13

Finding the Fourth Proportional to 136,008.45, 187,680.92 and 75,578.13

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Solution

The fourth proportional to 136,008.45, 187,680.92 and 75,578.13 is: 104,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,008.45 : 187,680.92 = 75,578.13 : x
  2. Step 2: Convert to fraction form
    136,008.45/187,680.92 = 75,578.13/x
  3. Step 3: Cross multiply
    136,008.45x = 187,680.92 × 75,578.13
  4. Step 4: Simplify right side
    136,008.45x = 14,184,572,592.39
  5. Step 5: Solve for x
    x = 14,184,572,592.39/136,008.45
  6. Step 6: Final answer
    x = 104,291.85

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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.