Home / 124,911.50-172,373.54-71,213.81

Finding the Fourth Proportional to 124,911.50, 172,373.54 and 71,213.81

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Solution

The fourth proportional to 124,911.50, 172,373.54 and 71,213.81 is: 98,272.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,911.50 : 172,373.54 = 71,213.81 : x
  2. Step 2: Convert to fraction form
    124,911.50/172,373.54 = 71,213.81/x
  3. Step 3: Cross multiply
    124,911.50x = 172,373.54 × 71,213.81
  4. Step 4: Simplify right side
    124,911.50x = 12,275,375,308.65
  5. Step 5: Solve for x
    x = 12,275,375,308.65/124,911.50
  6. Step 6: Final answer
    x = 98,272.58

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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.