Home / 143,342.74-215,020.41-43,516.90

Finding the Fourth Proportional to 143,342.74, 215,020.41 and 43,516.90

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Solution

The fourth proportional to 143,342.74, 215,020.41 and 43,516.90 is: 65,277.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,342.74 : 215,020.41 = 43,516.90 : x
  2. Step 2: Convert to fraction form
    143,342.74/215,020.41 = 43,516.90/x
  3. Step 3: Cross multiply
    143,342.74x = 215,020.41 × 43,516.90
  4. Step 4: Simplify right side
    143,342.74x = 9,357,021,679.93
  5. Step 5: Solve for x
    x = 9,357,021,679.93/143,342.74
  6. Step 6: Final answer
    x = 65,277.26

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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.