Home / 149,565.62-206,400.84-81,582.68

Finding the Fourth Proportional to 149,565.62, 206,400.84 and 81,582.68

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Solution

The fourth proportional to 149,565.62, 206,400.84 and 81,582.68 is: 112,584.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,565.62 : 206,400.84 = 81,582.68 : x
  2. Step 2: Convert to fraction form
    149,565.62/206,400.84 = 81,582.68/x
  3. Step 3: Cross multiply
    149,565.62x = 206,400.84 × 81,582.68
  4. Step 4: Simplify right side
    149,565.62x = 16,838,733,681.45
  5. Step 5: Solve for x
    x = 16,838,733,681.45/149,565.62
  6. Step 6: Final answer
    x = 112,584.25

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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.