Home / 143,319.79-215,066.09-49,891.15

Finding the Fourth Proportional to 143,319.79, 215,066.09 and 49,891.15

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Solution

The fourth proportional to 143,319.79, 215,066.09 and 49,891.15 is: 74,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,319.79 : 215,066.09 = 49,891.15 : x
  2. Step 2: Convert to fraction form
    143,319.79/215,066.09 = 49,891.15/x
  3. Step 3: Cross multiply
    143,319.79x = 215,066.09 × 49,891.15
  4. Step 4: Simplify right side
    143,319.79x = 10,729,894,556.10
  5. Step 5: Solve for x
    x = 10,729,894,556.10/143,319.79
  6. Step 6: Final answer
    x = 74,866.80

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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.