Home / 143,719.80-215,612.10-43,884.60

Finding the Fourth Proportional to 143,719.80, 215,612.10 and 43,884.60

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Solution

The fourth proportional to 143,719.80, 215,612.10 and 43,884.60 is: 65,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,719.80 : 215,612.10 = 43,884.60 : x
  2. Step 2: Convert to fraction form
    143,719.80/215,612.10 = 43,884.60/x
  3. Step 3: Cross multiply
    143,719.80x = 215,612.10 × 43,884.60
  4. Step 4: Simplify right side
    143,719.80x = 9,462,050,763.66
  5. Step 5: Solve for x
    x = 9,462,050,763.66/143,719.80
  6. Step 6: Final answer
    x = 65,836.79

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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.