Home / 94,147.40-141,734.03-81,291.08

Finding the Fourth Proportional to 94,147.40, 141,734.03 and 81,291.08

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Solution

The fourth proportional to 94,147.40, 141,734.03 and 81,291.08 is: 122,379.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,147.40 : 141,734.03 = 81,291.08 : x
  2. Step 2: Convert to fraction form
    94,147.40/141,734.03 = 81,291.08/x
  3. Step 3: Cross multiply
    94,147.40x = 141,734.03 × 81,291.08
  4. Step 4: Simplify right side
    94,147.40x = 11,521,712,371.45
  5. Step 5: Solve for x
    x = 11,521,712,371.45/94,147.40
  6. Step 6: Final answer
    x = 122,379.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.