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Finding the Fourth Proportional to 153,841.60, 230,793.60 and 87,313.60

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Solution

The fourth proportional to 153,841.60, 230,793.60 and 87,313.60 is: 130,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,841.60 : 230,793.60 = 87,313.60 : x
  2. Step 2: Convert to fraction form
    153,841.60/230,793.60 = 87,313.60/x
  3. Step 3: Cross multiply
    153,841.60x = 230,793.60 × 87,313.60
  4. Step 4: Simplify right side
    153,841.60x = 20,151,420,072.96
  5. Step 5: Solve for x
    x = 20,151,420,072.96/153,841.60
  6. Step 6: Final answer
    x = 130,988.11

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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.