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Finding the Fourth Proportional to 162,637.60, 243,481.20 and 115,981.60

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Solution

The fourth proportional to 162,637.60, 243,481.20 and 115,981.60 is: 173,633.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,637.60 : 243,481.20 = 115,981.60 : x
  2. Step 2: Convert to fraction form
    162,637.60/243,481.20 = 115,981.60/x
  3. Step 3: Cross multiply
    162,637.60x = 243,481.20 × 115,981.60
  4. Step 4: Simplify right side
    162,637.60x = 28,239,339,145.92
  5. Step 5: Solve for x
    x = 28,239,339,145.92/162,637.60
  6. Step 6: Final answer
    x = 173,633.52

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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.