Home / 104,884.96-144,740.68-57,138.20

Finding the Fourth Proportional to 104,884.96, 144,740.68 and 57,138.20

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Solution

The fourth proportional to 104,884.96, 144,740.68 and 57,138.20 is: 78,850.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,884.96 : 144,740.68 = 57,138.20 : x
  2. Step 2: Convert to fraction form
    104,884.96/144,740.68 = 57,138.20/x
  3. Step 3: Cross multiply
    104,884.96x = 144,740.68 × 57,138.20
  4. Step 4: Simplify right side
    104,884.96x = 8,270,221,921.98
  5. Step 5: Solve for x
    x = 8,270,221,921.98/104,884.96
  6. Step 6: Final answer
    x = 78,850.41

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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.