Home / 136,919.90-205,079.45-112,957.91

Finding the Fourth Proportional to 136,919.90, 205,079.45 and 112,957.91

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Solution

The fourth proportional to 136,919.90, 205,079.45 and 112,957.91 is: 169,189.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,919.90 : 205,079.45 = 112,957.91 : x
  2. Step 2: Convert to fraction form
    136,919.90/205,079.45 = 112,957.91/x
  3. Step 3: Cross multiply
    136,919.90x = 205,079.45 × 112,957.91
  4. Step 4: Simplify right side
    136,919.90x = 23,165,345,234.81
  5. Step 5: Solve for x
    x = 23,165,345,234.81/136,919.90
  6. Step 6: Final answer
    x = 169,189.03

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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.