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Finding the Fourth Proportional to 162,812.80, 244,024.80 and 83,886.40

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Solution

The fourth proportional to 162,812.80, 244,024.80 and 83,886.40 is: 125,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,812.80 : 244,024.80 = 83,886.40 : x
  2. Step 2: Convert to fraction form
    162,812.80/244,024.80 = 83,886.40/x
  3. Step 3: Cross multiply
    162,812.80x = 244,024.80 × 83,886.40
  4. Step 4: Simplify right side
    162,812.80x = 20,470,361,982.72
  5. Step 5: Solve for x
    x = 20,470,361,982.72/162,812.80
  6. Step 6: Final answer
    x = 125,729.44

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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.