Home / 124,707.12-172,095.60-68,118.48

Finding the Fourth Proportional to 124,707.12, 172,095.60 and 68,118.48

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Solution

The fourth proportional to 124,707.12, 172,095.60 and 68,118.48 is: 94,003.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,707.12 : 172,095.60 = 68,118.48 : x
  2. Step 2: Convert to fraction form
    124,707.12/172,095.60 = 68,118.48/x
  3. Step 3: Cross multiply
    124,707.12x = 172,095.60 × 68,118.48
  4. Step 4: Simplify right side
    124,707.12x = 11,722,890,686.69
  5. Step 5: Solve for x
    x = 11,722,890,686.69/124,707.12
  6. Step 6: Final answer
    x = 94,003.38

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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.