Home / 172,853.65-258,877.63-166,867.21

Finding the Fourth Proportional to 172,853.65, 258,877.63 and 166,867.21

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Solution

The fourth proportional to 172,853.65, 258,877.63 and 166,867.21 is: 249,911.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,853.65 : 258,877.63 = 166,867.21 : x
  2. Step 2: Convert to fraction form
    172,853.65/258,877.63 = 166,867.21/x
  3. Step 3: Cross multiply
    172,853.65x = 258,877.63 × 166,867.21
  4. Step 4: Simplify right side
    172,853.65x = 43,198,187,849.51
  5. Step 5: Solve for x
    x = 43,198,187,849.51/172,853.65
  6. Step 6: Final answer
    x = 249,911.92

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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.