Home / 124,809.88-172,249.54-71,112.28

Finding the Fourth Proportional to 124,809.88, 172,249.54 and 71,112.28

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Solution

The fourth proportional to 124,809.88, 172,249.54 and 71,112.28 is: 98,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,809.88 : 172,249.54 = 71,112.28 : x
  2. Step 2: Convert to fraction form
    124,809.88/172,249.54 = 71,112.28/x
  3. Step 3: Cross multiply
    124,809.88x = 172,249.54 × 71,112.28
  4. Step 4: Simplify right side
    124,809.88x = 12,249,057,518.35
  5. Step 5: Solve for x
    x = 12,249,057,518.35/124,809.88
  6. Step 6: Final answer
    x = 98,141.73

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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.