Home / 221,965.02-332,979.12-72,157.14

Finding the Fourth Proportional to 221,965.02, 332,979.12 and 72,157.14

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Solution

The fourth proportional to 221,965.02, 332,979.12 and 72,157.14 is: 108,245.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,965.02 : 332,979.12 = 72,157.14 : x
  2. Step 2: Convert to fraction form
    221,965.02/332,979.12 = 72,157.14/x
  3. Step 3: Cross multiply
    221,965.02x = 332,979.12 × 72,157.14
  4. Step 4: Simplify right side
    221,965.02x = 24,026,820,978.92
  5. Step 5: Solve for x
    x = 24,026,820,978.92/221,965.02
  6. Step 6: Final answer
    x = 108,245.98

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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.