Home / 124,678.20-172,053.18-68,089.80

Finding the Fourth Proportional to 124,678.20, 172,053.18 and 68,089.80

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Solution

The fourth proportional to 124,678.20, 172,053.18 and 68,089.80 is: 93,962.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,678.20 : 172,053.18 = 68,089.80 : x
  2. Step 2: Convert to fraction form
    124,678.20/172,053.18 = 68,089.80/x
  3. Step 3: Cross multiply
    124,678.20x = 172,053.18 × 68,089.80
  4. Step 4: Simplify right side
    124,678.20x = 11,715,066,615.56
  5. Step 5: Solve for x
    x = 11,715,066,615.56/124,678.20
  6. Step 6: Final answer
    x = 93,962.43

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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.