Home / 125,261.40-187,911.54-42,148.92

Finding the Fourth Proportional to 125,261.40, 187,911.54 and 42,148.92

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Solution

The fourth proportional to 125,261.40, 187,911.54 and 42,148.92 is: 63,229.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,261.40 : 187,911.54 = 42,148.92 : x
  2. Step 2: Convert to fraction form
    125,261.40/187,911.54 = 42,148.92/x
  3. Step 3: Cross multiply
    125,261.40x = 187,911.54 × 42,148.92
  4. Step 4: Simplify right side
    125,261.40x = 7,920,268,466.54
  5. Step 5: Solve for x
    x = 7,920,268,466.54/125,261.40
  6. Step 6: Final answer
    x = 63,229.92

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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.