Home / 136,020.20-204,030.30-102,842.60

Finding the Fourth Proportional to 136,020.20, 204,030.30 and 102,842.60

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Solution

The fourth proportional to 136,020.20, 204,030.30 and 102,842.60 is: 154,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,020.20 : 204,030.30 = 102,842.60 : x
  2. Step 2: Convert to fraction form
    136,020.20/204,030.30 = 102,842.60/x
  3. Step 3: Cross multiply
    136,020.20x = 204,030.30 × 102,842.60
  4. Step 4: Simplify right side
    136,020.20x = 20,983,006,530.78
  5. Step 5: Solve for x
    x = 20,983,006,530.78/136,020.20
  6. Step 6: Final answer
    x = 154,263.90

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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.