Home / 136,541.40-204,620.10-108,509.40

Finding the Fourth Proportional to 136,541.40, 204,620.10 and 108,509.40

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Solution

The fourth proportional to 136,541.40, 204,620.10 and 108,509.40 is: 162,611.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,541.40 : 204,620.10 = 108,509.40 : x
  2. Step 2: Convert to fraction form
    136,541.40/204,620.10 = 108,509.40/x
  3. Step 3: Cross multiply
    136,541.40x = 204,620.10 × 108,509.40
  4. Step 4: Simplify right side
    136,541.40x = 22,203,204,278.94
  5. Step 5: Solve for x
    x = 22,203,204,278.94/136,541.40
  6. Step 6: Final answer
    x = 162,611.52

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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.