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Finding the Fourth Proportional to 162,074.40, 243,000.90 and 73,279.50

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Solution

The fourth proportional to 162,074.40, 243,000.90 and 73,279.50 is: 109,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,074.40 : 243,000.90 = 73,279.50 : x
  2. Step 2: Convert to fraction form
    162,074.40/243,000.90 = 73,279.50/x
  3. Step 3: Cross multiply
    162,074.40x = 243,000.90 × 73,279.50
  4. Step 4: Simplify right side
    162,074.40x = 17,806,984,451.55
  5. Step 5: Solve for x
    x = 17,806,984,451.55/162,074.40
  6. Step 6: Final answer
    x = 109,869.20

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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.