Home / 189,451.12-261,381.72-125,801.68

Finding the Fourth Proportional to 189,451.12, 261,381.72 and 125,801.68

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Solution

The fourth proportional to 189,451.12, 261,381.72 and 125,801.68 is: 173,565.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,451.12 : 261,381.72 = 125,801.68 : x
  2. Step 2: Convert to fraction form
    189,451.12/261,381.72 = 125,801.68/x
  3. Step 3: Cross multiply
    189,451.12x = 261,381.72 × 125,801.68
  4. Step 4: Simplify right side
    189,451.12x = 32,882,259,497.29
  5. Step 5: Solve for x
    x = 32,882,259,497.29/189,451.12
  6. Step 6: Final answer
    x = 173,565.93

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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.