Home / 125,135.45-187,663.96-40,876.42

Finding the Fourth Proportional to 125,135.45, 187,663.96 and 40,876.42

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Solution

The fourth proportional to 125,135.45, 187,663.96 and 40,876.42 is: 61,301.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,135.45 : 187,663.96 = 40,876.42 : x
  2. Step 2: Convert to fraction form
    125,135.45/187,663.96 = 40,876.42/x
  3. Step 3: Cross multiply
    125,135.45x = 187,663.96 × 40,876.42
  4. Step 4: Simplify right side
    125,135.45x = 7,671,030,847.82
  5. Step 5: Solve for x
    x = 7,671,030,847.82/125,135.45
  6. Step 6: Final answer
    x = 61,301.82

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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.