Home / 104,901.78-144,766.12-57,155.12

Finding the Fourth Proportional to 104,901.78, 144,766.12 and 57,155.12

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Solution

The fourth proportional to 104,901.78, 144,766.12 and 57,155.12 is: 78,874.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,901.78 : 144,766.12 = 57,155.12 : x
  2. Step 2: Convert to fraction form
    104,901.78/144,766.12 = 57,155.12/x
  3. Step 3: Cross multiply
    104,901.78x = 144,766.12 × 57,155.12
  4. Step 4: Simplify right side
    104,901.78x = 8,274,124,960.53
  5. Step 5: Solve for x
    x = 8,274,124,960.53/104,901.78
  6. Step 6: Final answer
    x = 78,874.97

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1.5x scale

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.