Home / 125,149.02-187,721.52-30,379.96

Finding the Fourth Proportional to 125,149.02, 187,721.52 and 30,379.96

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Solution

The fourth proportional to 125,149.02, 187,721.52 and 30,379.96 is: 45,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,149.02 : 187,721.52 = 30,379.96 : x
  2. Step 2: Convert to fraction form
    125,149.02/187,721.52 = 30,379.96/x
  3. Step 3: Cross multiply
    125,149.02x = 187,721.52 × 30,379.96
  4. Step 4: Simplify right side
    125,149.02x = 5,702,972,268.74
  5. Step 5: Solve for x
    x = 5,702,972,268.74/125,149.02
  6. Step 6: Final answer
    x = 45,569.45

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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.