Home / 126,311.47-189,303.06-51,344.28

Finding the Fourth Proportional to 126,311.47, 189,303.06 and 51,344.28

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Solution

The fourth proportional to 126,311.47, 189,303.06 and 51,344.28 is: 76,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,311.47 : 189,303.06 = 51,344.28 : x
  2. Step 2: Convert to fraction form
    126,311.47/189,303.06 = 51,344.28/x
  3. Step 3: Cross multiply
    126,311.47x = 189,303.06 × 51,344.28
  4. Step 4: Simplify right side
    126,311.47x = 9,719,629,317.50
  5. Step 5: Solve for x
    x = 9,719,629,317.50/126,311.47
  6. Step 6: Final answer
    x = 76,949.70

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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.