Home / 99,230.49-136,938.78-53,908.86

Finding the Fourth Proportional to 99,230.49, 136,938.78 and 53,908.86

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Solution

The fourth proportional to 99,230.49, 136,938.78 and 53,908.86 is: 74,394.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,230.49 : 136,938.78 = 53,908.86 : x
  2. Step 2: Convert to fraction form
    99,230.49/136,938.78 = 53,908.86/x
  3. Step 3: Cross multiply
    99,230.49x = 136,938.78 × 53,908.86
  4. Step 4: Simplify right side
    99,230.49x = 7,382,213,519.59
  5. Step 5: Solve for x
    x = 7,382,213,519.59/99,230.49
  6. Step 6: Final answer
    x = 74,394.61

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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.