Home / 84,915.60-117,196.65-61,121.04

Finding the Fourth Proportional to 84,915.60, 117,196.65 and 61,121.04

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Solution

The fourth proportional to 84,915.60, 117,196.65 and 61,121.04 is: 84,356.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,915.60 : 117,196.65 = 61,121.04 : x
  2. Step 2: Convert to fraction form
    84,915.60/117,196.65 = 61,121.04/x
  3. Step 3: Cross multiply
    84,915.60x = 117,196.65 × 61,121.04
  4. Step 4: Simplify right side
    84,915.60x = 7,163,181,132.52
  5. Step 5: Solve for x
    x = 7,163,181,132.52/84,915.60
  6. Step 6: Final answer
    x = 84,356.48

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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.