Home / 124,731.28-187,103.40-62,380.72

Finding the Fourth Proportional to 124,731.28, 187,103.40 and 62,380.72

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Solution

The fourth proportional to 124,731.28, 187,103.40 and 62,380.72 is: 93,574.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,731.28 : 187,103.40 = 62,380.72 : x
  2. Step 2: Convert to fraction form
    124,731.28/187,103.40 = 62,380.72/x
  3. Step 3: Cross multiply
    124,731.28x = 187,103.40 × 62,380.72
  4. Step 4: Simplify right side
    124,731.28x = 11,671,644,806.45
  5. Step 5: Solve for x
    x = 11,671,644,806.45/124,731.28
  6. Step 6: Final answer
    x = 93,574.32

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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.