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Finding the Fourth Proportional to 150,010.60, 225,113.10 and 86,830.60

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Solution

The fourth proportional to 150,010.60, 225,113.10 and 86,830.60 is: 130,302.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,010.60 : 225,113.10 = 86,830.60 : x
  2. Step 2: Convert to fraction form
    150,010.60/225,113.10 = 86,830.60/x
  3. Step 3: Cross multiply
    150,010.60x = 225,113.10 × 86,830.60
  4. Step 4: Simplify right side
    150,010.60x = 19,546,705,540.86
  5. Step 5: Solve for x
    x = 19,546,705,540.86/150,010.60
  6. Step 6: Final answer
    x = 130,302.16

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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.