Home / 387,939.08-581,908.62-107,456.42

Finding the Fourth Proportional to 387,939.08, 581,908.62 and 107,456.42

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Solution

The fourth proportional to 387,939.08, 581,908.62 and 107,456.42 is: 161,184.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,939.08 : 581,908.62 = 107,456.42 : x
  2. Step 2: Convert to fraction form
    387,939.08/581,908.62 = 107,456.42/x
  3. Step 3: Cross multiply
    387,939.08x = 581,908.62 × 107,456.42
  4. Step 4: Simplify right side
    387,939.08x = 62,529,817,072.34
  5. Step 5: Solve for x
    x = 62,529,817,072.34/387,939.08
  6. Step 6: Final answer
    x = 161,184.63

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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.