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Finding the Fourth Proportional to 162,868.20, 244,294.20 and 83,990.40

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Solution

The fourth proportional to 162,868.20, 244,294.20 and 83,990.40 is: 125,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,868.20 : 244,294.20 = 83,990.40 : x
  2. Step 2: Convert to fraction form
    162,868.20/244,294.20 = 83,990.40/x
  3. Step 3: Cross multiply
    162,868.20x = 244,294.20 × 83,990.40
  4. Step 4: Simplify right side
    162,868.20x = 20,518,367,575.68
  5. Step 5: Solve for x
    x = 20,518,367,575.68/162,868.20
  6. Step 6: Final answer
    x = 125,981.42

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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.