Home / 168,514.35-232,443.02-128,139.60

Finding the Fourth Proportional to 168,514.35, 232,443.02 and 128,139.60

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Solution

The fourth proportional to 168,514.35, 232,443.02 and 128,139.60 is: 176,751.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,514.35 : 232,443.02 = 128,139.60 : x
  2. Step 2: Convert to fraction form
    168,514.35/232,443.02 = 128,139.60/x
  3. Step 3: Cross multiply
    168,514.35x = 232,443.02 × 128,139.60
  4. Step 4: Simplify right side
    168,514.35x = 29,785,154,964.89
  5. Step 5: Solve for x
    x = 29,785,154,964.89/168,514.35
  6. Step 6: Final answer
    x = 176,751.44

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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.