Home / 126,157.99-189,022.76-76,132.97

Finding the Fourth Proportional to 126,157.99, 189,022.76 and 76,132.97

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Solution

The fourth proportional to 126,157.99, 189,022.76 and 76,132.97 is: 114,070.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,157.99 : 189,022.76 = 76,132.97 : x
  2. Step 2: Convert to fraction form
    126,157.99/189,022.76 = 76,132.97/x
  3. Step 3: Cross multiply
    126,157.99x = 189,022.76 × 76,132.97
  4. Step 4: Simplify right side
    126,157.99x = 14,390,863,171.28
  5. Step 5: Solve for x
    x = 14,390,863,171.28/126,157.99
  6. Step 6: Final answer
    x = 114,070.17

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1.5x scale

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.