Home / 151,836.12-209,530.26-83,851.74

Finding the Fourth Proportional to 151,836.12, 209,530.26 and 83,851.74

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Solution

The fourth proportional to 151,836.12, 209,530.26 and 83,851.74 is: 115,713.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,836.12 : 209,530.26 = 83,851.74 : x
  2. Step 2: Convert to fraction form
    151,836.12/209,530.26 = 83,851.74/x
  3. Step 3: Cross multiply
    151,836.12x = 209,530.26 × 83,851.74
  4. Step 4: Simplify right side
    151,836.12x = 17,569,476,883.65
  5. Step 5: Solve for x
    x = 17,569,476,883.65/151,836.12
  6. Step 6: Final answer
    x = 115,713.42

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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.