Home / 126,154.20-189,246.42-51,258.36

Finding the Fourth Proportional to 126,154.20, 189,246.42 and 51,258.36

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Solution

The fourth proportional to 126,154.20, 189,246.42 and 51,258.36 is: 76,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,154.20 : 189,246.42 = 51,258.36 : x
  2. Step 2: Convert to fraction form
    126,154.20/189,246.42 = 51,258.36/x
  3. Step 3: Cross multiply
    126,154.20x = 189,246.42 × 51,258.36
  4. Step 4: Simplify right side
    126,154.20x = 9,700,461,125.07
  5. Step 5: Solve for x
    x = 9,700,461,125.07/126,154.20
  6. Step 6: Final answer
    x = 76,893.68

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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.