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Finding the Fourth Proportional to 162,045.70, 243,068.55 and 83,167.90

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Solution

The fourth proportional to 162,045.70, 243,068.55 and 83,167.90 is: 124,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,045.70 : 243,068.55 = 83,167.90 : x
  2. Step 2: Convert to fraction form
    162,045.70/243,068.55 = 83,167.90/x
  3. Step 3: Cross multiply
    162,045.70x = 243,068.55 × 83,167.90
  4. Step 4: Simplify right side
    162,045.70x = 20,215,500,859.55
  5. Step 5: Solve for x
    x = 20,215,500,859.55/162,045.70
  6. Step 6: Final answer
    x = 124,751.85

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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.