Home / 99,109.48-136,769.38-54,397.16

Finding the Fourth Proportional to 99,109.48, 136,769.38 and 54,397.16

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Solution

The fourth proportional to 99,109.48, 136,769.38 and 54,397.16 is: 75,067.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,109.48 : 136,769.38 = 54,397.16 : x
  2. Step 2: Convert to fraction form
    99,109.48/136,769.38 = 54,397.16/x
  3. Step 3: Cross multiply
    99,109.48x = 136,769.38 × 54,397.16
  4. Step 4: Simplify right side
    99,109.48x = 7,439,865,846.96
  5. Step 5: Solve for x
    x = 7,439,865,846.96/99,109.48
  6. Step 6: Final answer
    x = 75,067.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.