Home / 154,042.60-231,063.90-122,938.60

Finding the Fourth Proportional to 154,042.60, 231,063.90 and 122,938.60

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Solution

The fourth proportional to 154,042.60, 231,063.90 and 122,938.60 is: 184,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,042.60 : 231,063.90 = 122,938.60 : x
  2. Step 2: Convert to fraction form
    154,042.60/231,063.90 = 122,938.60/x
  3. Step 3: Cross multiply
    154,042.60x = 231,063.90 × 122,938.60
  4. Step 4: Simplify right side
    154,042.60x = 28,406,672,376.54
  5. Step 5: Solve for x
    x = 28,406,672,376.54/154,042.60
  6. Step 6: Final answer
    x = 184,407.90

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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.