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Finding the Fourth Proportional to 162,029.70, 243,044.55 and 83,151.90

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Solution

The fourth proportional to 162,029.70, 243,044.55 and 83,151.90 is: 124,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,029.70 : 243,044.55 = 83,151.90 : x
  2. Step 2: Convert to fraction form
    162,029.70/243,044.55 = 83,151.90/x
  3. Step 3: Cross multiply
    162,029.70x = 243,044.55 × 83,151.90
  4. Step 4: Simplify right side
    162,029.70x = 20,209,616,117.15
  5. Step 5: Solve for x
    x = 20,209,616,117.15/162,029.70
  6. Step 6: Final answer
    x = 124,727.85

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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.