Home / 104,985.97-144,882.20-57,240.11

Finding the Fourth Proportional to 104,985.97, 144,882.20 and 57,240.11

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Solution

The fourth proportional to 104,985.97, 144,882.20 and 57,240.11 is: 78,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,985.97 : 144,882.20 = 57,240.11 : x
  2. Step 2: Convert to fraction form
    104,985.97/144,882.20 = 57,240.11/x
  3. Step 3: Cross multiply
    104,985.97x = 144,882.20 × 57,240.11
  4. Step 4: Simplify right side
    104,985.97x = 8,293,073,570.35
  5. Step 5: Solve for x
    x = 8,293,073,570.35/104,985.97
  6. Step 6: Final answer
    x = 78,992.21

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1.5x scale

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.