Home / 112,400.48-155,116.26-61,418.04

Finding the Fourth Proportional to 112,400.48, 155,116.26 and 61,418.04

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Solution

The fourth proportional to 112,400.48, 155,116.26 and 61,418.04 is: 84,758.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,400.48 : 155,116.26 = 61,418.04 : x
  2. Step 2: Convert to fraction form
    112,400.48/155,116.26 = 61,418.04/x
  3. Step 3: Cross multiply
    112,400.48x = 155,116.26 × 61,418.04
  4. Step 4: Simplify right side
    112,400.48x = 9,526,936,661.33
  5. Step 5: Solve for x
    x = 9,526,936,661.33/112,400.48
  6. Step 6: Final answer
    x = 84,758.86

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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.