Home / 179,531.12-269,421.04-71,449.36

Finding the Fourth Proportional to 179,531.12, 269,421.04 and 71,449.36

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Solution

The fourth proportional to 179,531.12, 269,421.04 and 71,449.36 is: 107,223.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,531.12 : 269,421.04 = 71,449.36 : x
  2. Step 2: Convert to fraction form
    179,531.12/269,421.04 = 71,449.36/x
  3. Step 3: Cross multiply
    179,531.12x = 269,421.04 × 71,449.36
  4. Step 4: Simplify right side
    179,531.12x = 19,249,960,878.53
  5. Step 5: Solve for x
    x = 19,249,960,878.53/179,531.12
  6. Step 6: Final answer
    x = 107,223.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.