Home / 143,719.17-215,569.31-53,744.37

Finding the Fourth Proportional to 143,719.17, 215,569.31 and 53,744.37

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Solution

The fourth proportional to 143,719.17, 215,569.31 and 53,744.37 is: 80,613.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,719.17 : 215,569.31 = 53,744.37 : x
  2. Step 2: Convert to fraction form
    143,719.17/215,569.31 = 53,744.37/x
  3. Step 3: Cross multiply
    143,719.17x = 215,569.31 × 53,744.37
  4. Step 4: Simplify right side
    143,719.17x = 11,585,636,488.56
  5. Step 5: Solve for x
    x = 11,585,636,488.56/143,719.17
  6. Step 6: Final answer
    x = 80,613.02

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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.