Home / 221,993.08-306,349.96-120,018.56

Finding the Fourth Proportional to 221,993.08, 306,349.96 and 120,018.56

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Solution

The fourth proportional to 221,993.08, 306,349.96 and 120,018.56 is: 165,625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,993.08 : 306,349.96 = 120,018.56 : x
  2. Step 2: Convert to fraction form
    221,993.08/306,349.96 = 120,018.56/x
  3. Step 3: Cross multiply
    221,993.08x = 306,349.96 × 120,018.56
  4. Step 4: Simplify right side
    221,993.08x = 36,767,681,055.26
  5. Step 5: Solve for x
    x = 36,767,681,055.26/221,993.08
  6. Step 6: Final answer
    x = 165,625.35

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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.