Home / 207,609.12-286,521.78-127,089.84

Finding the Fourth Proportional to 207,609.12, 286,521.78 and 127,089.84

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Solution

The fourth proportional to 207,609.12, 286,521.78 and 127,089.84 is: 175,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,609.12 : 286,521.78 = 127,089.84 : x
  2. Step 2: Convert to fraction form
    207,609.12/286,521.78 = 127,089.84/x
  3. Step 3: Cross multiply
    207,609.12x = 286,521.78 × 127,089.84
  4. Step 4: Simplify right side
    207,609.12x = 36,414,007,176.72
  5. Step 5: Solve for x
    x = 36,414,007,176.72/207,609.12
  6. Step 6: Final answer
    x = 175,396.95

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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.