Home / 143,501.79-215,243.97-53,527.15

Finding the Fourth Proportional to 143,501.79, 215,243.97 and 53,527.15

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Solution

The fourth proportional to 143,501.79, 215,243.97 and 53,527.15 is: 80,287.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,501.79 : 215,243.97 = 53,527.15 : x
  2. Step 2: Convert to fraction form
    143,501.79/215,243.97 = 53,527.15/x
  3. Step 3: Cross multiply
    143,501.79x = 215,243.97 × 53,527.15
  4. Step 4: Simplify right side
    143,501.79x = 11,521,396,268.79
  5. Step 5: Solve for x
    x = 11,521,396,268.79/143,501.79
  6. Step 6: Final answer
    x = 80,287.47

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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.