Home / 235,513.13-325,005.03-128,080.85

Finding the Fourth Proportional to 235,513.13, 325,005.03 and 128,080.85

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Solution

The fourth proportional to 235,513.13, 325,005.03 and 128,080.85 is: 176,749.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,513.13 : 325,005.03 = 128,080.85 : x
  2. Step 2: Convert to fraction form
    235,513.13/325,005.03 = 128,080.85/x
  3. Step 3: Cross multiply
    235,513.13x = 325,005.03 × 128,080.85
  4. Step 4: Simplify right side
    235,513.13x = 41,626,920,496.68
  5. Step 5: Solve for x
    x = 41,626,920,496.68/235,513.13
  6. Step 6: Final answer
    x = 176,749.89

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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.