Home / 124,799.96-172,223.52-68,211.20

Finding the Fourth Proportional to 124,799.96, 172,223.52 and 68,211.20

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Solution

The fourth proportional to 124,799.96, 172,223.52 and 68,211.20 is: 94,131.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,799.96 : 172,223.52 = 68,211.20 : x
  2. Step 2: Convert to fraction form
    124,799.96/172,223.52 = 68,211.20/x
  3. Step 3: Cross multiply
    124,799.96x = 172,223.52 × 68,211.20
  4. Step 4: Simplify right side
    124,799.96x = 11,747,572,106.31
  5. Step 5: Solve for x
    x = 11,747,572,106.31/124,799.96
  6. Step 6: Final answer
    x = 94,131.22

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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.