Home / 79,736.12-118,889.20-76,854.80

Finding the Fourth Proportional to 79,736.12, 118,889.20 and 76,854.80

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Solution

The fourth proportional to 79,736.12, 118,889.20 and 76,854.80 is: 114,593.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,736.12 : 118,889.20 = 76,854.80 : x
  2. Step 2: Convert to fraction form
    79,736.12/118,889.20 = 76,854.80/x
  3. Step 3: Cross multiply
    79,736.12x = 118,889.20 × 76,854.80
  4. Step 4: Simplify right side
    79,736.12x = 9,137,205,688.16
  5. Step 5: Solve for x
    x = 9,137,205,688.16/79,736.12
  6. Step 6: Final answer
    x = 114,593.06

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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.