Home / 235,514.12-325,005.89-128,081.68

Finding the Fourth Proportional to 235,514.12, 325,005.89 and 128,081.68

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Solution

The fourth proportional to 235,514.12, 325,005.89 and 128,081.68 is: 176,750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,514.12 : 325,005.89 = 128,081.68 : x
  2. Step 2: Convert to fraction form
    235,514.12/325,005.89 = 128,081.68/x
  3. Step 3: Cross multiply
    235,514.12x = 325,005.89 × 128,081.68
  4. Step 4: Simplify right side
    235,514.12x = 41,627,298,948.17
  5. Step 5: Solve for x
    x = 41,627,298,948.17/235,514.12
  6. Step 6: Final answer
    x = 176,750.76

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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.