Home / 127,705.01-176,048.79-89,345.71

Finding the Fourth Proportional to 127,705.01, 176,048.79 and 89,345.71

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Solution

The fourth proportional to 127,705.01, 176,048.79 and 89,345.71 is: 123,168.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,705.01 : 176,048.79 = 89,345.71 : x
  2. Step 2: Convert to fraction form
    127,705.01/176,048.79 = 89,345.71/x
  3. Step 3: Cross multiply
    127,705.01x = 176,048.79 × 89,345.71
  4. Step 4: Simplify right side
    127,705.01x = 15,729,204,029.64
  5. Step 5: Solve for x
    x = 15,729,204,029.64/127,705.01
  6. Step 6: Final answer
    x = 123,168.27

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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.