Home / 126,151.50-189,227.25-51,312.36

Finding the Fourth Proportional to 126,151.50, 189,227.25 and 51,312.36

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Solution

The fourth proportional to 126,151.50, 189,227.25 and 51,312.36 is: 76,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,151.50 : 189,227.25 = 51,312.36 : x
  2. Step 2: Convert to fraction form
    126,151.50/189,227.25 = 51,312.36/x
  3. Step 3: Cross multiply
    126,151.50x = 189,227.25 × 51,312.36
  4. Step 4: Simplify right side
    126,151.50x = 9,709,696,773.81
  5. Step 5: Solve for x
    x = 9,709,696,773.81/126,151.50
  6. Step 6: Final answer
    x = 76,968.54

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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.