Home / 112,650.10-155,397-69,653.68

Finding the Fourth Proportional to 112,650.10, 155,397 and 69,653.68

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Solution

The fourth proportional to 112,650.10, 155,397 and 69,653.68 is: 96,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,650.10 : 155,397 = 69,653.68 : x
  2. Step 2: Convert to fraction form
    112,650.10/155,397 = 69,653.68/x
  3. Step 3: Cross multiply
    112,650.10x = 155,397 × 69,653.68
  4. Step 4: Simplify right side
    112,650.10x = 10,823,972,910.96
  5. Step 5: Solve for x
    x = 10,823,972,910.96/112,650.10
  6. Step 6: Final answer
    x = 96,084.89

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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.