Home / 126,258.95-189,144.21-105,752.24

Finding the Fourth Proportional to 126,258.95, 189,144.21 and 105,752.24

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Solution

The fourth proportional to 126,258.95, 189,144.21 and 105,752.24 is: 158,423.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,258.95 : 189,144.21 = 105,752.24 : x
  2. Step 2: Convert to fraction form
    126,258.95/189,144.21 = 105,752.24/x
  3. Step 3: Cross multiply
    126,258.95x = 189,144.21 × 105,752.24
  4. Step 4: Simplify right side
    126,258.95x = 20,002,423,890.53
  5. Step 5: Solve for x
    x = 20,002,423,890.53/126,258.95
  6. Step 6: Final answer
    x = 158,423.81

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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.