Home / 156,177.80-215,888.56-139,348.86

Finding the Fourth Proportional to 156,177.80, 215,888.56 and 139,348.86

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Solution

The fourth proportional to 156,177.80, 215,888.56 and 139,348.86 is: 192,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,177.80 : 215,888.56 = 139,348.86 : x
  2. Step 2: Convert to fraction form
    156,177.80/215,888.56 = 139,348.86/x
  3. Step 3: Cross multiply
    156,177.80x = 215,888.56 × 139,348.86
  4. Step 4: Simplify right side
    156,177.80x = 30,083,824,723.04
  5. Step 5: Solve for x
    x = 30,083,824,723.04/156,177.80
  6. Step 6: Final answer
    x = 192,625.49

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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.