Home / 136,154.53-187,892.21-74,899.40

Finding the Fourth Proportional to 136,154.53, 187,892.21 and 74,899.40

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Solution

The fourth proportional to 136,154.53, 187,892.21 and 74,899.40 is: 103,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,154.53 : 187,892.21 = 74,899.40 : x
  2. Step 2: Convert to fraction form
    136,154.53/187,892.21 = 74,899.40/x
  3. Step 3: Cross multiply
    136,154.53x = 187,892.21 × 74,899.40
  4. Step 4: Simplify right side
    136,154.53x = 14,073,013,419.18
  5. Step 5: Solve for x
    x = 14,073,013,419.18/136,154.53
  6. Step 6: Final answer
    x = 103,360.60

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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.