Home / 235,512.13-325,003.65-128,079.85

Finding the Fourth Proportional to 235,512.13, 325,003.65 and 128,079.85

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Solution

The fourth proportional to 235,512.13, 325,003.65 and 128,079.85 is: 176,748.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,512.13 : 325,003.65 = 128,079.85 : x
  2. Step 2: Convert to fraction form
    235,512.13/325,003.65 = 128,079.85/x
  3. Step 3: Cross multiply
    235,512.13x = 325,003.65 × 128,079.85
  4. Step 4: Simplify right side
    235,512.13x = 41,626,418,741.45
  5. Step 5: Solve for x
    x = 41,626,418,741.45/235,512.13
  6. Step 6: Final answer
    x = 176,748.51

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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.