Home / 99,190.72-136,882.62-53,868.28

Finding the Fourth Proportional to 99,190.72, 136,882.62 and 53,868.28

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Solution

The fourth proportional to 99,190.72, 136,882.62 and 53,868.28 is: 74,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,190.72 : 136,882.62 = 53,868.28 : x
  2. Step 2: Convert to fraction form
    99,190.72/136,882.62 = 53,868.28/x
  3. Step 3: Cross multiply
    99,190.72x = 136,882.62 × 53,868.28
  4. Step 4: Simplify right side
    99,190.72x = 7,373,631,301.29
  5. Step 5: Solve for x
    x = 7,373,631,301.29/99,190.72
  6. Step 6: Final answer
    x = 74,337.91

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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.