Home / 126,150.50-189,225.75-51,311.36

Finding the Fourth Proportional to 126,150.50, 189,225.75 and 51,311.36

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Solution

The fourth proportional to 126,150.50, 189,225.75 and 51,311.36 is: 76,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,150.50 : 189,225.75 = 51,311.36 : x
  2. Step 2: Convert to fraction form
    126,150.50/189,225.75 = 51,311.36/x
  3. Step 3: Cross multiply
    126,150.50x = 189,225.75 × 51,311.36
  4. Step 4: Simplify right side
    126,150.50x = 9,709,430,579.52
  5. Step 5: Solve for x
    x = 9,709,430,579.52/126,150.50
  6. Step 6: Final answer
    x = 76,967.04

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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.