Home / 124,845.49-172,279.27-71,136.42

Finding the Fourth Proportional to 124,845.49, 172,279.27 and 71,136.42

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Solution

The fourth proportional to 124,845.49, 172,279.27 and 71,136.42 is: 98,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,845.49 : 172,279.27 = 71,136.42 : x
  2. Step 2: Convert to fraction form
    124,845.49/172,279.27 = 71,136.42/x
  3. Step 3: Cross multiply
    124,845.49x = 172,279.27 × 71,136.42
  4. Step 4: Simplify right side
    124,845.49x = 12,255,330,508.01
  5. Step 5: Solve for x
    x = 12,255,330,508.01/124,845.49
  6. Step 6: Final answer
    x = 98,163.98

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1.5x scale

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.