Home / 236,513.76-326,377.44-129,081.12

Finding the Fourth Proportional to 236,513.76, 326,377.44 and 129,081.12

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Solution

The fourth proportional to 236,513.76, 326,377.44 and 129,081.12 is: 178,125.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,513.76 : 326,377.44 = 129,081.12 : x
  2. Step 2: Convert to fraction form
    236,513.76/326,377.44 = 129,081.12/x
  3. Step 3: Cross multiply
    236,513.76x = 326,377.44 × 129,081.12
  4. Step 4: Simplify right side
    236,513.76x = 42,129,165,497.93
  5. Step 5: Solve for x
    x = 42,129,165,497.93/236,513.76
  6. Step 6: Final answer
    x = 178,125.64

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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.