Home / 144,985.40-217,218.90-122,694.20

Finding the Fourth Proportional to 144,985.40, 217,218.90 and 122,694.20

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Solution

The fourth proportional to 144,985.40, 217,218.90 and 122,694.20 is: 183,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,985.40 : 217,218.90 = 122,694.20 : x
  2. Step 2: Convert to fraction form
    144,985.40/217,218.90 = 122,694.20/x
  3. Step 3: Cross multiply
    144,985.40x = 217,218.90 × 122,694.20
  4. Step 4: Simplify right side
    144,985.40x = 26,651,499,160.38
  5. Step 5: Solve for x
    x = 26,651,499,160.38/144,985.40
  6. Step 6: Final answer
    x = 183,821.95

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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.