Home / 112,627.26-155,425.67-61,639.95

Finding the Fourth Proportional to 112,627.26, 155,425.67 and 61,639.95

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Solution

The fourth proportional to 112,627.26, 155,425.67 and 61,639.95 is: 85,063.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,627.26 : 155,425.67 = 61,639.95 : x
  2. Step 2: Convert to fraction form
    112,627.26/155,425.67 = 61,639.95/x
  3. Step 3: Cross multiply
    112,627.26x = 155,425.67 × 61,639.95
  4. Step 4: Simplify right side
    112,627.26x = 9,580,431,033.31
  5. Step 5: Solve for x
    x = 9,580,431,033.31/112,627.26
  6. Step 6: Final answer
    x = 85,063.16

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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.