Home / 125,343.81-187,566.57-108,534.78

Finding the Fourth Proportional to 125,343.81, 187,566.57 and 108,534.78

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Solution

The fourth proportional to 125,343.81, 187,566.57 and 108,534.78 is: 162,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,343.81 : 187,566.57 = 108,534.78 : x
  2. Step 2: Convert to fraction form
    125,343.81/187,566.57 = 108,534.78/x
  3. Step 3: Cross multiply
    125,343.81x = 187,566.57 × 108,534.78
  4. Step 4: Simplify right side
    125,343.81x = 20,357,496,410.30
  5. Step 5: Solve for x
    x = 20,357,496,410.30/125,343.81
  6. Step 6: Final answer
    x = 162,413.26

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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.