Home / 78,968.53-117,437.18-76,476.88

Finding the Fourth Proportional to 78,968.53, 117,437.18 and 76,476.88

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Solution

The fourth proportional to 78,968.53, 117,437.18 and 76,476.88 is: 113,731.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,968.53 : 117,437.18 = 76,476.88 : x
  2. Step 2: Convert to fraction form
    78,968.53/117,437.18 = 76,476.88/x
  3. Step 3: Cross multiply
    78,968.53x = 117,437.18 × 76,476.88
  4. Step 4: Simplify right side
    78,968.53x = 8,981,229,122.40
  5. Step 5: Solve for x
    x = 8,981,229,122.40/78,968.53
  6. Step 6: Final answer
    x = 113,731.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.