Home / 207,159.54-285,902.10-126,634.20

Finding the Fourth Proportional to 207,159.54, 285,902.10 and 126,634.20

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Solution

The fourth proportional to 207,159.54, 285,902.10 and 126,634.20 is: 174,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,159.54 : 285,902.10 = 126,634.20 : x
  2. Step 2: Convert to fraction form
    207,159.54/285,902.10 = 126,634.20/x
  3. Step 3: Cross multiply
    207,159.54x = 285,902.10 × 126,634.20
  4. Step 4: Simplify right side
    207,159.54x = 36,204,983,711.82
  5. Step 5: Solve for x
    x = 36,204,983,711.82/207,159.54
  6. Step 6: Final answer
    x = 174,768.60

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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.