Home / 236,508.75-326,388.96-129,085.65

Finding the Fourth Proportional to 236,508.75, 326,388.96 and 129,085.65

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Solution

The fourth proportional to 236,508.75, 326,388.96 and 129,085.65 is: 178,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,508.75 : 326,388.96 = 129,085.65 : x
  2. Step 2: Convert to fraction form
    236,508.75/326,388.96 = 129,085.65/x
  3. Step 3: Cross multiply
    236,508.75x = 326,388.96 × 129,085.65
  4. Step 4: Simplify right side
    236,508.75x = 42,132,131,054.42
  5. Step 5: Solve for x
    x = 42,132,131,054.42/236,508.75
  6. Step 6: Final answer
    x = 178,141.95

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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.