Home / 115,422.43-159,263.22-64,432.53

Finding the Fourth Proportional to 115,422.43, 159,263.22 and 64,432.53

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Solution

The fourth proportional to 115,422.43, 159,263.22 and 64,432.53 is: 88,905.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,422.43 : 159,263.22 = 64,432.53 : x
  2. Step 2: Convert to fraction form
    115,422.43/159,263.22 = 64,432.53/x
  3. Step 3: Cross multiply
    115,422.43x = 159,263.22 × 64,432.53
  4. Step 4: Simplify right side
    115,422.43x = 10,261,732,200.55
  5. Step 5: Solve for x
    x = 10,261,732,200.55/115,422.43
  6. Step 6: Final answer
    x = 88,905.88

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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.