Home / 118,139.85-163,029.36-67,158.15

Finding the Fourth Proportional to 118,139.85, 163,029.36 and 67,158.15

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Solution

The fourth proportional to 118,139.85, 163,029.36 and 67,158.15 is: 92,676.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,139.85 : 163,029.36 = 67,158.15 : x
  2. Step 2: Convert to fraction form
    118,139.85/163,029.36 = 67,158.15/x
  3. Step 3: Cross multiply
    118,139.85x = 163,029.36 × 67,158.15
  4. Step 4: Simplify right side
    118,139.85x = 10,948,750,213.28
  5. Step 5: Solve for x
    x = 10,948,750,213.28/118,139.85
  6. Step 6: Final answer
    x = 92,676.18

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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.