Home / 126,528.42-189,792.48-51,683.76

Finding the Fourth Proportional to 126,528.42, 189,792.48 and 51,683.76

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Solution

The fourth proportional to 126,528.42, 189,792.48 and 51,683.76 is: 77,525.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,528.42 : 189,792.48 = 51,683.76 : x
  2. Step 2: Convert to fraction form
    126,528.42/189,792.48 = 51,683.76/x
  3. Step 3: Cross multiply
    126,528.42x = 189,792.48 × 51,683.76
  4. Step 4: Simplify right side
    126,528.42x = 9,809,188,986.12
  5. Step 5: Solve for x
    x = 9,809,188,986.12/126,528.42
  6. Step 6: Final answer
    x = 77,525.58

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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.