Home / 106,867.12-147,479.22-59,121.40

Finding the Fourth Proportional to 106,867.12, 147,479.22 and 59,121.40

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Solution

The fourth proportional to 106,867.12, 147,479.22 and 59,121.40 is: 81,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,867.12 : 147,479.22 = 59,121.40 : x
  2. Step 2: Convert to fraction form
    106,867.12/147,479.22 = 59,121.40/x
  3. Step 3: Cross multiply
    106,867.12x = 147,479.22 × 59,121.40
  4. Step 4: Simplify right side
    106,867.12x = 8,719,177,957.31
  5. Step 5: Solve for x
    x = 8,719,177,957.31/106,867.12
  6. Step 6: Final answer
    x = 81,588.97

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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.