Home / 128,180.16-191,891.60-94,677.76

Finding the Fourth Proportional to 128,180.16, 191,891.60 and 94,677.76

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Solution

The fourth proportional to 128,180.16, 191,891.60 and 94,677.76 is: 141,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,180.16 : 191,891.60 = 94,677.76 : x
  2. Step 2: Convert to fraction form
    128,180.16/191,891.60 = 94,677.76/x
  3. Step 3: Cross multiply
    128,180.16x = 191,891.60 × 94,677.76
  4. Step 4: Simplify right side
    128,180.16x = 18,167,866,850.82
  5. Step 5: Solve for x
    x = 18,167,866,850.82/128,180.16
  6. Step 6: Final answer
    x = 141,736.96

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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.