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Finding the Fourth Proportional to 162,170.60, 242,599.80 and 142,487.60

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Solution

The fourth proportional to 162,170.60, 242,599.80 and 142,487.60 is: 213,154.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,170.60 : 242,599.80 = 142,487.60 : x
  2. Step 2: Convert to fraction form
    162,170.60/242,599.80 = 142,487.60/x
  3. Step 3: Cross multiply
    162,170.60x = 242,599.80 × 142,487.60
  4. Step 4: Simplify right side
    162,170.60x = 34,567,463,262.48
  5. Step 5: Solve for x
    x = 34,567,463,262.48/162,170.60
  6. Step 6: Final answer
    x = 213,154.93

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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.