Home / 126,139.05-188,994.45-76,114.04

Finding the Fourth Proportional to 126,139.05, 188,994.45 and 76,114.04

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Solution

The fourth proportional to 126,139.05, 188,994.45 and 76,114.04 is: 114,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,139.05 : 188,994.45 = 76,114.04 : x
  2. Step 2: Convert to fraction form
    126,139.05/188,994.45 = 76,114.04/x
  3. Step 3: Cross multiply
    126,139.05x = 188,994.45 × 76,114.04
  4. Step 4: Simplify right side
    126,139.05x = 14,385,130,182.11
  5. Step 5: Solve for x
    x = 14,385,130,182.11/126,139.05
  6. Step 6: Final answer
    x = 114,041.85

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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.