Home / 124,707.74-172,085.52-76,976.46

Finding the Fourth Proportional to 124,707.74, 172,085.52 and 76,976.46

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Solution

The fourth proportional to 124,707.74, 172,085.52 and 76,976.46 is: 106,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,707.74 : 172,085.52 = 76,976.46 : x
  2. Step 2: Convert to fraction form
    124,707.74/172,085.52 = 76,976.46/x
  3. Step 3: Cross multiply
    124,707.74x = 172,085.52 × 76,976.46
  4. Step 4: Simplify right side
    124,707.74x = 13,246,534,146.86
  5. Step 5: Solve for x
    x = 13,246,534,146.86/124,707.74
  6. Step 6: Final answer
    x = 106,220.63

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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.