Home / 126,558.02-189,889.41-55,443.87

Finding the Fourth Proportional to 126,558.02, 189,889.41 and 55,443.87

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Solution

The fourth proportional to 126,558.02, 189,889.41 and 55,443.87 is: 83,188.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,558.02 : 189,889.41 = 55,443.87 : x
  2. Step 2: Convert to fraction form
    126,558.02/189,889.41 = 55,443.87/x
  3. Step 3: Cross multiply
    126,558.02x = 189,889.41 × 55,443.87
  4. Step 4: Simplify right side
    126,558.02x = 10,528,203,762.42
  5. Step 5: Solve for x
    x = 10,528,203,762.42/126,558.02
  6. Step 6: Final answer
    x = 83,188.75

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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.