Home / 125,178.06-187,796.63-40,937.89

Finding the Fourth Proportional to 125,178.06, 187,796.63 and 40,937.89

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Solution

The fourth proportional to 125,178.06, 187,796.63 and 40,937.89 is: 61,416.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,178.06 : 187,796.63 = 40,937.89 : x
  2. Step 2: Convert to fraction form
    125,178.06/187,796.63 = 40,937.89/x
  3. Step 3: Cross multiply
    125,178.06x = 187,796.63 × 40,937.89
  4. Step 4: Simplify right side
    125,178.06x = 7,687,997,781.31
  5. Step 5: Solve for x
    x = 7,687,997,781.31/125,178.06
  6. Step 6: Final answer
    x = 61,416.50

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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.