Home / 168,514.61-232,443.36-128,139.85

Finding the Fourth Proportional to 168,514.61, 232,443.36 and 128,139.85

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Solution

The fourth proportional to 168,514.61, 232,443.36 and 128,139.85 is: 176,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,514.61 : 232,443.36 = 128,139.85 : x
  2. Step 2: Convert to fraction form
    168,514.61/232,443.36 = 128,139.85/x
  3. Step 3: Cross multiply
    168,514.61x = 232,443.36 × 128,139.85
  4. Step 4: Simplify right side
    168,514.61x = 29,785,257,283.90
  5. Step 5: Solve for x
    x = 29,785,257,283.90/168,514.61
  6. Step 6: Final answer
    x = 176,751.79

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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.