Home / 104,890.20-144,851.28-89,695.08

Finding the Fourth Proportional to 104,890.20, 144,851.28 and 89,695.08

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Solution

The fourth proportional to 104,890.20, 144,851.28 and 89,695.08 is: 123,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,890.20 : 144,851.28 = 89,695.08 : x
  2. Step 2: Convert to fraction form
    104,890.20/144,851.28 = 89,695.08/x
  3. Step 3: Cross multiply
    104,890.20x = 144,851.28 × 89,695.08
  4. Step 4: Simplify right side
    104,890.20x = 12,992,447,147.70
  5. Step 5: Solve for x
    x = 12,992,447,147.70/104,890.20
  6. Step 6: Final answer
    x = 123,867.12

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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.