Home / 151,869.90-209,544.66-88,169.88

Finding the Fourth Proportional to 151,869.90, 209,544.66 and 88,169.88

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Solution

The fourth proportional to 151,869.90, 209,544.66 and 88,169.88 is: 121,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,869.90 : 209,544.66 = 88,169.88 : x
  2. Step 2: Convert to fraction form
    151,869.90/209,544.66 = 88,169.88/x
  3. Step 3: Cross multiply
    151,869.90x = 209,544.66 × 88,169.88
  4. Step 4: Simplify right side
    151,869.90x = 18,475,527,526.84
  5. Step 5: Solve for x
    x = 18,475,527,526.84/151,869.90
  6. Step 6: Final answer
    x = 121,653.65

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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.