Home / 125,158.32-187,749-40,918.93

Finding the Fourth Proportional to 125,158.32, 187,749 and 40,918.93

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Solution

The fourth proportional to 125,158.32, 187,749 and 40,918.93 is: 61,382.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,158.32 : 187,749 = 40,918.93 : x
  2. Step 2: Convert to fraction form
    125,158.32/187,749 = 40,918.93/x
  3. Step 3: Cross multiply
    125,158.32x = 187,749 × 40,918.93
  4. Step 4: Simplify right side
    125,158.32x = 7,682,487,719.20
  5. Step 5: Solve for x
    x = 7,682,487,719.20/125,158.32
  6. Step 6: Final answer
    x = 61,382.16

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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.