Home / 100,127.32-150,025.13-70,399.92

Finding the Fourth Proportional to 100,127.32, 150,025.13 and 70,399.92

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Solution

The fourth proportional to 100,127.32, 150,025.13 and 70,399.92 is: 105,483.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,127.32 : 150,025.13 = 70,399.92 : x
  2. Step 2: Convert to fraction form
    100,127.32/150,025.13 = 70,399.92/x
  3. Step 3: Cross multiply
    100,127.32x = 150,025.13 × 70,399.92
  4. Step 4: Simplify right side
    100,127.32x = 10,561,757,149.99
  5. Step 5: Solve for x
    x = 10,561,757,149.99/100,127.32
  6. Step 6: Final answer
    x = 105,483.27

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1.5x scale

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.