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Finding the Fourth Proportional to 161,572.60, 242,618.10 and 109,214.20

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Solution

The fourth proportional to 161,572.60, 242,618.10 and 109,214.20 is: 163,996.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,572.60 : 242,618.10 = 109,214.20 : x
  2. Step 2: Convert to fraction form
    161,572.60/242,618.10 = 109,214.20/x
  3. Step 3: Cross multiply
    161,572.60x = 242,618.10 × 109,214.20
  4. Step 4: Simplify right side
    161,572.60x = 26,497,341,697.02
  5. Step 5: Solve for x
    x = 26,497,341,697.02/161,572.60
  6. Step 6: Final answer
    x = 163,996.50

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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.