Home / 112,879.09-155,776.11-63,816.80

Finding the Fourth Proportional to 112,879.09, 155,776.11 and 63,816.80

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Solution

The fourth proportional to 112,879.09, 155,776.11 and 63,816.80 is: 88,068.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,879.09 : 155,776.11 = 63,816.80 : x
  2. Step 2: Convert to fraction form
    112,879.09/155,776.11 = 63,816.80/x
  3. Step 3: Cross multiply
    112,879.09x = 155,776.11 × 63,816.80
  4. Step 4: Simplify right side
    112,879.09x = 9,941,132,856.65
  5. Step 5: Solve for x
    x = 9,941,132,856.65/112,879.09
  6. Step 6: Final answer
    x = 88,068.86

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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.