Home / 112,531.26-155,293.54-61,545

Finding the Fourth Proportional to 112,531.26, 155,293.54 and 61,545

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Solution

The fourth proportional to 112,531.26, 155,293.54 and 61,545 is: 84,932.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,531.26 : 155,293.54 = 61,545 : x
  2. Step 2: Convert to fraction form
    112,531.26/155,293.54 = 61,545/x
  3. Step 3: Cross multiply
    112,531.26x = 155,293.54 × 61,545
  4. Step 4: Simplify right side
    112,531.26x = 9,557,540,919.30
  5. Step 5: Solve for x
    x = 9,557,540,919.30/112,531.26
  6. Step 6: Final answer
    x = 84,932.32

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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.