Home / 136,976.18-205,455.12-43,474.64

Finding the Fourth Proportional to 136,976.18, 205,455.12 and 43,474.64

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Solution

The fourth proportional to 136,976.18, 205,455.12 and 43,474.64 is: 65,209.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,976.18 : 205,455.12 = 43,474.64 : x
  2. Step 2: Convert to fraction form
    136,976.18/205,455.12 = 43,474.64/x
  3. Step 3: Cross multiply
    136,976.18x = 205,455.12 × 43,474.64
  4. Step 4: Simplify right side
    136,976.18x = 8,932,087,378.16
  5. Step 5: Solve for x
    x = 8,932,087,378.16/136,976.18
  6. Step 6: Final answer
    x = 65,209.06

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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.