Home / 164,019.36-226,363.44-100,399.20

Finding the Fourth Proportional to 164,019.36, 226,363.44 and 100,399.20

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Solution

The fourth proportional to 164,019.36, 226,363.44 and 100,399.20 is: 138,561.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,019.36 : 226,363.44 = 100,399.20 : x
  2. Step 2: Convert to fraction form
    164,019.36/226,363.44 = 100,399.20/x
  3. Step 3: Cross multiply
    164,019.36x = 226,363.44 × 100,399.20
  4. Step 4: Simplify right side
    164,019.36x = 22,726,708,285.25
  5. Step 5: Solve for x
    x = 22,726,708,285.25/164,019.36
  6. Step 6: Final answer
    x = 138,561.13

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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.