Home / 126,646.20-189,969.30-125,771.40

Finding the Fourth Proportional to 126,646.20, 189,969.30 and 125,771.40

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Solution

The fourth proportional to 126,646.20, 189,969.30 and 125,771.40 is: 188,657.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,646.20 : 189,969.30 = 125,771.40 : x
  2. Step 2: Convert to fraction form
    126,646.20/189,969.30 = 125,771.40/x
  3. Step 3: Cross multiply
    126,646.20x = 189,969.30 × 125,771.40
  4. Step 4: Simplify right side
    126,646.20x = 23,892,704,818.02
  5. Step 5: Solve for x
    x = 23,892,704,818.02/126,646.20
  6. Step 6: Final answer
    x = 188,657.10

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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.