Home / 113,740.70-156,969.52-66,010.10

Finding the Fourth Proportional to 113,740.70, 156,969.52 and 66,010.10

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Solution

The fourth proportional to 113,740.70, 156,969.52 and 66,010.10 is: 91,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,740.70 : 156,969.52 = 66,010.10 : x
  2. Step 2: Convert to fraction form
    113,740.70/156,969.52 = 66,010.10/x
  3. Step 3: Cross multiply
    113,740.70x = 156,969.52 × 66,010.10
  4. Step 4: Simplify right side
    113,740.70x = 10,361,573,712.15
  5. Step 5: Solve for x
    x = 10,361,573,712.15/113,740.70
  6. Step 6: Final answer
    x = 91,098.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.