Home / 112,899.26-155,801.19-61,912.36

Finding the Fourth Proportional to 112,899.26, 155,801.19 and 61,912.36

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Solution

The fourth proportional to 112,899.26, 155,801.19 and 61,912.36 is: 85,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,899.26 : 155,801.19 = 61,912.36 : x
  2. Step 2: Convert to fraction form
    112,899.26/155,801.19 = 61,912.36/x
  3. Step 3: Cross multiply
    112,899.26x = 155,801.19 × 61,912.36
  4. Step 4: Simplify right side
    112,899.26x = 9,646,018,762.97
  5. Step 5: Solve for x
    x = 9,646,018,762.97/112,899.26
  6. Step 6: Final answer
    x = 85,439.17

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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.