Home / 125,086.94-187,649.86-42,000.38

Finding the Fourth Proportional to 125,086.94, 187,649.86 and 42,000.38

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Solution

The fourth proportional to 125,086.94, 187,649.86 and 42,000.38 is: 63,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,086.94 : 187,649.86 = 42,000.38 : x
  2. Step 2: Convert to fraction form
    125,086.94/187,649.86 = 42,000.38/x
  3. Step 3: Cross multiply
    125,086.94x = 187,649.86 × 42,000.38
  4. Step 4: Simplify right side
    125,086.94x = 7,881,365,426.95
  5. Step 5: Solve for x
    x = 7,881,365,426.95/125,086.94
  6. Step 6: Final answer
    x = 63,007.10

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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.