Home / 150,289.38-207,399.72-81,379.56

Finding the Fourth Proportional to 150,289.38, 207,399.72 and 81,379.56

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Solution

The fourth proportional to 150,289.38, 207,399.72 and 81,379.56 is: 112,304.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,289.38 : 207,399.72 = 81,379.56 : x
  2. Step 2: Convert to fraction form
    150,289.38/207,399.72 = 81,379.56/x
  3. Step 3: Cross multiply
    150,289.38x = 207,399.72 × 81,379.56
  4. Step 4: Simplify right side
    150,289.38x = 16,878,097,957.72
  5. Step 5: Solve for x
    x = 16,878,097,957.72/150,289.38
  6. Step 6: Final answer
    x = 112,304.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.