Home / 136,172.97-187,915.98-75,742.31

Finding the Fourth Proportional to 136,172.97, 187,915.98 and 75,742.31

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Solution

The fourth proportional to 136,172.97, 187,915.98 and 75,742.31 is: 104,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,172.97 : 187,915.98 = 75,742.31 : x
  2. Step 2: Convert to fraction form
    136,172.97/187,915.98 = 75,742.31/x
  3. Step 3: Cross multiply
    136,172.97x = 187,915.98 × 75,742.31
  4. Step 4: Simplify right side
    136,172.97x = 14,233,189,471.53
  5. Step 5: Solve for x
    x = 14,233,189,471.53/136,172.97
  6. Step 6: Final answer
    x = 104,522.87

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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.