Home / 149,565.29-206,400.74-81,583.74

Finding the Fourth Proportional to 149,565.29, 206,400.74 and 81,583.74

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Solution

The fourth proportional to 149,565.29, 206,400.74 and 81,583.74 is: 112,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,565.29 : 206,400.74 = 81,583.74 : x
  2. Step 2: Convert to fraction form
    149,565.29/206,400.74 = 81,583.74/x
  3. Step 3: Cross multiply
    149,565.29x = 206,400.74 × 81,583.74
  4. Step 4: Simplify right side
    149,565.29x = 16,838,943,900.05
  5. Step 5: Solve for x
    x = 16,838,943,900.05/149,565.29
  6. Step 6: Final answer
    x = 112,585.91

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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.