Home / 126,148.50-189,222.75-51,309.36

Finding the Fourth Proportional to 126,148.50, 189,222.75 and 51,309.36

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Solution

The fourth proportional to 126,148.50, 189,222.75 and 51,309.36 is: 76,964.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,148.50 : 189,222.75 = 51,309.36 : x
  2. Step 2: Convert to fraction form
    126,148.50/189,222.75 = 51,309.36/x
  3. Step 3: Cross multiply
    126,148.50x = 189,222.75 × 51,309.36
  4. Step 4: Simplify right side
    126,148.50x = 9,708,898,199.94
  5. Step 5: Solve for x
    x = 9,708,898,199.94/126,148.50
  6. Step 6: Final answer
    x = 76,964.04

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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.