Home / 112,531.66-155,287.40-61,534.28

Finding the Fourth Proportional to 112,531.66, 155,287.40 and 61,534.28

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Solution

The fourth proportional to 112,531.66, 155,287.40 and 61,534.28 is: 84,913.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,531.66 : 155,287.40 = 61,534.28 : x
  2. Step 2: Convert to fraction form
    112,531.66/155,287.40 = 61,534.28/x
  3. Step 3: Cross multiply
    112,531.66x = 155,287.40 × 61,534.28
  4. Step 4: Simplify right side
    112,531.66x = 9,555,498,352.07
  5. Step 5: Solve for x
    x = 9,555,498,352.07/112,531.66
  6. Step 6: Final answer
    x = 84,913.87

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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.