Home / 125,155.52-187,731.24-30,386.48

Finding the Fourth Proportional to 125,155.52, 187,731.24 and 30,386.48

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Solution

The fourth proportional to 125,155.52, 187,731.24 and 30,386.48 is: 45,579.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,155.52 : 187,731.24 = 30,386.48 : x
  2. Step 2: Convert to fraction form
    125,155.52/187,731.24 = 30,386.48/x
  3. Step 3: Cross multiply
    125,155.52x = 187,731.24 × 30,386.48
  4. Step 4: Simplify right side
    125,155.52x = 5,704,491,569.64
  5. Step 5: Solve for x
    x = 5,704,491,569.64/125,155.52
  6. Step 6: Final answer
    x = 45,579.22

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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.