Home / 109,265.20-163,962.60-71,932.30

Finding the Fourth Proportional to 109,265.20, 163,962.60 and 71,932.30

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Solution

The fourth proportional to 109,265.20, 163,962.60 and 71,932.30 is: 107,941.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,265.20 : 163,962.60 = 71,932.30 : x
  2. Step 2: Convert to fraction form
    109,265.20/163,962.60 = 71,932.30/x
  3. Step 3: Cross multiply
    109,265.20x = 163,962.60 × 71,932.30
  4. Step 4: Simplify right side
    109,265.20x = 11,794,206,931.98
  5. Step 5: Solve for x
    x = 11,794,206,931.98/109,265.20
  6. Step 6: Final answer
    x = 107,941.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.