Home / 112,917.08-155,828.43-63,854.78

Finding the Fourth Proportional to 112,917.08, 155,828.43 and 63,854.78

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Solution

The fourth proportional to 112,917.08, 155,828.43 and 63,854.78 is: 88,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,917.08 : 155,828.43 = 63,854.78 : x
  2. Step 2: Convert to fraction form
    112,917.08/155,828.43 = 63,854.78/x
  3. Step 3: Cross multiply
    112,917.08x = 155,828.43 × 63,854.78
  4. Step 4: Simplify right side
    112,917.08x = 9,950,389,336.25
  5. Step 5: Solve for x
    x = 9,950,389,336.25/112,917.08
  6. Step 6: Final answer
    x = 88,121.20

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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.