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Finding the Fourth Proportional to 162,760.80, 243,946.80 and 83,834.40

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Solution

The fourth proportional to 162,760.80, 243,946.80 and 83,834.40 is: 125,651.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,760.80 : 243,946.80 = 83,834.40 : x
  2. Step 2: Convert to fraction form
    162,760.80/243,946.80 = 83,834.40/x
  3. Step 3: Cross multiply
    162,760.80x = 243,946.80 × 83,834.40
  4. Step 4: Simplify right side
    162,760.80x = 20,451,133,609.92
  5. Step 5: Solve for x
    x = 20,451,133,609.92/162,760.80
  6. Step 6: Final answer
    x = 125,651.47

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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.