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Finding the Fourth Proportional to 115,022.55, 158,728.03 and 64,035.29

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Solution

The fourth proportional to 115,022.55, 158,728.03 and 64,035.29 is: 88,366.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,022.55 : 158,728.03 = 64,035.29 : x
  2. Step 2: Convert to fraction form
    115,022.55/158,728.03 = 64,035.29/x
  3. Step 3: Cross multiply
    115,022.55x = 158,728.03 × 64,035.29
  4. Step 4: Simplify right side
    115,022.55x = 10,164,195,432.18
  5. Step 5: Solve for x
    x = 10,164,195,432.18/115,022.55
  6. Step 6: Final answer
    x = 88,366.98

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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.