Home / 127,991.76-176,628.70-71,403.13

Finding the Fourth Proportional to 127,991.76, 176,628.70 and 71,403.13

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Solution

The fourth proportional to 127,991.76, 176,628.70 and 71,403.13 is: 98,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,991.76 : 176,628.70 = 71,403.13 : x
  2. Step 2: Convert to fraction form
    127,991.76/176,628.70 = 71,403.13/x
  3. Step 3: Cross multiply
    127,991.76x = 176,628.70 × 71,403.13
  4. Step 4: Simplify right side
    127,991.76x = 12,611,842,027.83
  5. Step 5: Solve for x
    x = 12,611,842,027.83/127,991.76
  6. Step 6: Final answer
    x = 98,536.36

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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.