Home / 127,647.40-176,148.66-71,057.56

Finding the Fourth Proportional to 127,647.40, 176,148.66 and 71,057.56

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Solution

The fourth proportional to 127,647.40, 176,148.66 and 71,057.56 is: 98,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,647.40 : 176,148.66 = 71,057.56 : x
  2. Step 2: Convert to fraction form
    127,647.40/176,148.66 = 71,057.56/x
  3. Step 3: Cross multiply
    127,647.40x = 176,148.66 × 71,057.56
  4. Step 4: Simplify right side
    127,647.40x = 12,516,693,976.87
  5. Step 5: Solve for x
    x = 12,516,693,976.87/127,647.40
  6. Step 6: Final answer
    x = 98,056.79

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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.