Home / 77,774.20-116,531.70-73,108.60

Finding the Fourth Proportional to 77,774.20, 116,531.70 and 73,108.60

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Solution

The fourth proportional to 77,774.20, 116,531.70 and 73,108.60 is: 109,541.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,774.20 : 116,531.70 = 73,108.60 : x
  2. Step 2: Convert to fraction form
    77,774.20/116,531.70 = 73,108.60/x
  3. Step 3: Cross multiply
    77,774.20x = 116,531.70 × 73,108.60
  4. Step 4: Simplify right side
    77,774.20x = 8,519,469,442.62
  5. Step 5: Solve for x
    x = 8,519,469,442.62/77,774.20
  6. Step 6: Final answer
    x = 109,541.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.