Home / 156,128.72-234,204.92-61,313.15

Finding the Fourth Proportional to 156,128.72, 234,204.92 and 61,313.15

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Solution

The fourth proportional to 156,128.72, 234,204.92 and 61,313.15 is: 91,974.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,128.72 : 234,204.92 = 61,313.15 : x
  2. Step 2: Convert to fraction form
    156,128.72/234,204.92 = 61,313.15/x
  3. Step 3: Cross multiply
    156,128.72x = 234,204.92 × 61,313.15
  4. Step 4: Simplify right side
    156,128.72x = 14,359,841,899.57
  5. Step 5: Solve for x
    x = 14,359,841,899.57/156,128.72
  6. Step 6: Final answer
    x = 91,974.38

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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.