Home / 131,648.48-181,675.76-80,661.32

Finding the Fourth Proportional to 131,648.48, 181,675.76 and 80,661.32

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Solution

The fourth proportional to 131,648.48, 181,675.76 and 80,661.32 is: 111,313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,648.48 : 181,675.76 = 80,661.32 : x
  2. Step 2: Convert to fraction form
    131,648.48/181,675.76 = 80,661.32/x
  3. Step 3: Cross multiply
    131,648.48x = 181,675.76 × 80,661.32
  4. Step 4: Simplify right side
    131,648.48x = 14,654,206,613.60
  5. Step 5: Solve for x
    x = 14,654,206,613.60/131,648.48
  6. Step 6: Final answer
    x = 111,313.15

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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.