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Finding the Fourth Proportional to 161,887.60, 242,572.20 and 102,617.20

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Solution

The fourth proportional to 161,887.60, 242,572.20 and 102,617.20 is: 153,761.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,887.60 : 242,572.20 = 102,617.20 : x
  2. Step 2: Convert to fraction form
    161,887.60/242,572.20 = 102,617.20/x
  3. Step 3: Cross multiply
    161,887.60x = 242,572.20 × 102,617.20
  4. Step 4: Simplify right side
    161,887.60x = 24,892,079,961.84
  5. Step 5: Solve for x
    x = 24,892,079,961.84/161,887.60
  6. Step 6: Final answer
    x = 153,761.50

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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.