Home / 109,272.40-163,937.76-39,158.80

Finding the Fourth Proportional to 109,272.40, 163,937.76 and 39,158.80

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Solution

The fourth proportional to 109,272.40, 163,937.76 and 39,158.80 is: 58,748.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,272.40 : 163,937.76 = 39,158.80 : x
  2. Step 2: Convert to fraction form
    109,272.40/163,937.76 = 39,158.80/x
  3. Step 3: Cross multiply
    109,272.40x = 163,937.76 × 39,158.80
  4. Step 4: Simplify right side
    109,272.40x = 6,419,605,956.29
  5. Step 5: Solve for x
    x = 6,419,605,956.29/109,272.40
  6. Step 6: Final answer
    x = 58,748.65

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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.