Home / 112,702.82-155,523.02-61,716.18

Finding the Fourth Proportional to 112,702.82, 155,523.02 and 61,716.18

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Solution

The fourth proportional to 112,702.82, 155,523.02 and 61,716.18 is: 85,164.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,702.82 : 155,523.02 = 61,716.18 : x
  2. Step 2: Convert to fraction form
    112,702.82/155,523.02 = 61,716.18/x
  3. Step 3: Cross multiply
    112,702.82x = 155,523.02 × 61,716.18
  4. Step 4: Simplify right side
    112,702.82x = 9,598,286,696.46
  5. Step 5: Solve for x
    x = 9,598,286,696.46/112,702.82
  6. Step 6: Final answer
    x = 85,164.57

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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.