Home / 176,456.67-243,539.24-128,867.55

Finding the Fourth Proportional to 176,456.67, 243,539.24 and 128,867.55

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Solution

The fourth proportional to 176,456.67, 243,539.24 and 128,867.55 is: 177,858.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,456.67 : 243,539.24 = 128,867.55 : x
  2. Step 2: Convert to fraction form
    176,456.67/243,539.24 = 128,867.55/x
  3. Step 3: Cross multiply
    176,456.67x = 243,539.24 × 128,867.55
  4. Step 4: Simplify right side
    176,456.67x = 31,384,304,543.32
  5. Step 5: Solve for x
    x = 31,384,304,543.32/176,456.67
  6. Step 6: Final answer
    x = 177,858.42

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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.