Home / 124,953.48-172,431.50-71,255.78

Finding the Fourth Proportional to 124,953.48, 172,431.50 and 71,255.78

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Solution

The fourth proportional to 124,953.48, 172,431.50 and 71,255.78 is: 98,330.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,953.48 : 172,431.50 = 71,255.78 : x
  2. Step 2: Convert to fraction form
    124,953.48/172,431.50 = 71,255.78/x
  3. Step 3: Cross multiply
    124,953.48x = 172,431.50 × 71,255.78
  4. Step 4: Simplify right side
    124,953.48x = 12,286,741,029.07
  5. Step 5: Solve for x
    x = 12,286,741,029.07/124,953.48
  6. Step 6: Final answer
    x = 98,330.52

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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.