Home / 143,976.79-215,940.58-38,771.16

Finding the Fourth Proportional to 143,976.79, 215,940.58 and 38,771.16

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Solution

The fourth proportional to 143,976.79, 215,940.58 and 38,771.16 is: 58,150.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,976.79 : 215,940.58 = 38,771.16 : x
  2. Step 2: Convert to fraction form
    143,976.79/215,940.58 = 38,771.16/x
  3. Step 3: Cross multiply
    143,976.79x = 215,940.58 × 38,771.16
  4. Step 4: Simplify right side
    143,976.79x = 8,372,266,089.06
  5. Step 5: Solve for x
    x = 8,372,266,089.06/143,976.79
  6. Step 6: Final answer
    x = 58,150.11

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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.