Home / 144,429.80-216,207.30-109,146.20

Finding the Fourth Proportional to 144,429.80, 216,207.30 and 109,146.20

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Solution

The fourth proportional to 144,429.80, 216,207.30 and 109,146.20 is: 163,388.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,429.80 : 216,207.30 = 109,146.20 : x
  2. Step 2: Convert to fraction form
    144,429.80/216,207.30 = 109,146.20/x
  3. Step 3: Cross multiply
    144,429.80x = 216,207.30 × 109,146.20
  4. Step 4: Simplify right side
    144,429.80x = 23,598,205,207.26
  5. Step 5: Solve for x
    x = 23,598,205,207.26/144,429.80
  6. Step 6: Final answer
    x = 163,388.76

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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.