Home / 147,399.36-203,411.16-80,331.36

Finding the Fourth Proportional to 147,399.36, 203,411.16 and 80,331.36

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Solution

The fourth proportional to 147,399.36, 203,411.16 and 80,331.36 is: 110,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,399.36 : 203,411.16 = 80,331.36 : x
  2. Step 2: Convert to fraction form
    147,399.36/203,411.16 = 80,331.36/x
  3. Step 3: Cross multiply
    147,399.36x = 203,411.16 × 80,331.36
  4. Step 4: Simplify right side
    147,399.36x = 16,340,295,121.98
  5. Step 5: Solve for x
    x = 16,340,295,121.98/147,399.36
  6. Step 6: Final answer
    x = 110,857.30

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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.