Home / 149,565.04-206,400.39-81,583.48

Finding the Fourth Proportional to 149,565.04, 206,400.39 and 81,583.48

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Solution

The fourth proportional to 149,565.04, 206,400.39 and 81,583.48 is: 112,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,565.04 : 206,400.39 = 81,583.48 : x
  2. Step 2: Convert to fraction form
    149,565.04/206,400.39 = 81,583.48/x
  3. Step 3: Cross multiply
    149,565.04x = 206,400.39 × 81,583.48
  4. Step 4: Simplify right side
    149,565.04x = 16,838,862,089.56
  5. Step 5: Solve for x
    x = 16,838,862,089.56/149,565.04
  6. Step 6: Final answer
    x = 112,585.55

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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.