Home / 172,862.21-259,535.30-88,681.75

Finding the Fourth Proportional to 172,862.21, 259,535.30 and 88,681.75

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Solution

The fourth proportional to 172,862.21, 259,535.30 and 88,681.75 is: 133,146.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,862.21 : 259,535.30 = 88,681.75 : x
  2. Step 2: Convert to fraction form
    172,862.21/259,535.30 = 88,681.75/x
  3. Step 3: Cross multiply
    172,862.21x = 259,535.30 × 88,681.75
  4. Step 4: Simplify right side
    172,862.21x = 23,016,044,590.78
  5. Step 5: Solve for x
    x = 23,016,044,590.78/172,862.21
  6. Step 6: Final answer
    x = 133,146.77

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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.