Home / 150,555.40-225,833.10-91,409.20

Finding the Fourth Proportional to 150,555.40, 225,833.10 and 91,409.20

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Solution

The fourth proportional to 150,555.40, 225,833.10 and 91,409.20 is: 137,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,555.40 : 225,833.10 = 91,409.20 : x
  2. Step 2: Convert to fraction form
    150,555.40/225,833.10 = 91,409.20/x
  3. Step 3: Cross multiply
    150,555.40x = 225,833.10 × 91,409.20
  4. Step 4: Simplify right side
    150,555.40x = 20,643,223,004.52
  5. Step 5: Solve for x
    x = 20,643,223,004.52/150,555.40
  6. Step 6: Final answer
    x = 137,113.80

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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.