Home / 109,436.40-151,023.24-61,685.52

Finding the Fourth Proportional to 109,436.40, 151,023.24 and 61,685.52

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Solution

The fourth proportional to 109,436.40, 151,023.24 and 61,685.52 is: 85,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,436.40 : 151,023.24 = 61,685.52 : x
  2. Step 2: Convert to fraction form
    109,436.40/151,023.24 = 61,685.52/x
  3. Step 3: Cross multiply
    109,436.40x = 151,023.24 × 61,685.52
  4. Step 4: Simplify right side
    109,436.40x = 9,315,947,091.48
  5. Step 5: Solve for x
    x = 9,315,947,091.48/109,436.40
  6. Step 6: Final answer
    x = 85,126.59

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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.