Home / 127,850.87-176,434.40-71,261.03

Finding the Fourth Proportional to 127,850.87, 176,434.40 and 71,261.03

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Solution

The fourth proportional to 127,850.87, 176,434.40 and 71,261.03 is: 98,340.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,850.87 : 176,434.40 = 71,261.03 : x
  2. Step 2: Convert to fraction form
    127,850.87/176,434.40 = 71,261.03/x
  3. Step 3: Cross multiply
    127,850.87x = 176,434.40 × 71,261.03
  4. Step 4: Simplify right side
    127,850.87x = 12,572,897,071.43
  5. Step 5: Solve for x
    x = 12,572,897,071.43/127,850.87
  6. Step 6: Final answer
    x = 98,340.33

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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.