Home / 168,507.54-232,433.61-128,132.78

Finding the Fourth Proportional to 168,507.54, 232,433.61 and 128,132.78

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Solution

The fourth proportional to 168,507.54, 232,433.61 and 128,132.78 is: 176,742.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,507.54 : 232,433.61 = 128,132.78 : x
  2. Step 2: Convert to fraction form
    168,507.54/232,433.61 = 128,132.78/x
  3. Step 3: Cross multiply
    168,507.54x = 232,433.61 × 128,132.78
  4. Step 4: Simplify right side
    168,507.54x = 29,782,365,195.82
  5. Step 5: Solve for x
    x = 29,782,365,195.82/168,507.54
  6. Step 6: Final answer
    x = 176,742.03

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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.