Home / 109,523.20-151,143.76-61,777.50

Finding the Fourth Proportional to 109,523.20, 151,143.76 and 61,777.50

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Solution

The fourth proportional to 109,523.20, 151,143.76 and 61,777.50 is: 85,253.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,523.20 : 151,143.76 = 61,777.50 : x
  2. Step 2: Convert to fraction form
    109,523.20/151,143.76 = 61,777.50/x
  3. Step 3: Cross multiply
    109,523.20x = 151,143.76 × 61,777.50
  4. Step 4: Simplify right side
    109,523.20x = 9,337,283,101.10
  5. Step 5: Solve for x
    x = 9,337,283,101.10/109,523.20
  6. Step 6: Final answer
    x = 85,253.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.