Home / 129,133.68-193,719-62,519.12

Finding the Fourth Proportional to 129,133.68, 193,719 and 62,519.12

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Solution

The fourth proportional to 129,133.68, 193,719 and 62,519.12 is: 93,787.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,133.68 : 193,719 = 62,519.12 : x
  2. Step 2: Convert to fraction form
    129,133.68/193,719 = 62,519.12/x
  3. Step 3: Cross multiply
    129,133.68x = 193,719 × 62,519.12
  4. Step 4: Simplify right side
    129,133.68x = 12,111,141,407.28
  5. Step 5: Solve for x
    x = 12,111,141,407.28/129,133.68
  6. Step 6: Final answer
    x = 93,787.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.