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Finding the Fourth Proportional to 111,503, 153,854.29 and 63,104.70

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Solution

The fourth proportional to 111,503, 153,854.29 and 63,104.70 is: 87,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,503 : 153,854.29 = 63,104.70 : x
  2. Step 2: Convert to fraction form
    111,503/153,854.29 = 63,104.70/x
  3. Step 3: Cross multiply
    111,503x = 153,854.29 × 63,104.70
  4. Step 4: Simplify right side
    111,503x = 9,708,928,814.16
  5. Step 5: Solve for x
    x = 9,708,928,814.16/111,503
  6. Step 6: Final answer
    x = 87,073.25

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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.