Home / 103,321.10-142,546.46-67,531.76

Finding the Fourth Proportional to 103,321.10, 142,546.46 and 67,531.76

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Solution

The fourth proportional to 103,321.10, 142,546.46 and 67,531.76 is: 93,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,321.10 : 142,546.46 = 67,531.76 : x
  2. Step 2: Convert to fraction form
    103,321.10/142,546.46 = 67,531.76/x
  3. Step 3: Cross multiply
    103,321.10x = 142,546.46 × 67,531.76
  4. Step 4: Simplify right side
    103,321.10x = 9,626,413,325.57
  5. Step 5: Solve for x
    x = 9,626,413,325.57/103,321.10
  6. Step 6: Final answer
    x = 93,169.87

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1.5x scale

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.