Home / 221,156.32-331,724.40-71,403.52

Finding the Fourth Proportional to 221,156.32, 331,724.40 and 71,403.52

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Solution

The fourth proportional to 221,156.32, 331,724.40 and 71,403.52 is: 107,102.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,156.32 : 331,724.40 = 71,403.52 : x
  2. Step 2: Convert to fraction form
    221,156.32/331,724.40 = 71,403.52/x
  3. Step 3: Cross multiply
    221,156.32x = 331,724.40 × 71,403.52
  4. Step 4: Simplify right side
    221,156.32x = 23,686,289,829.89
  5. Step 5: Solve for x
    x = 23,686,289,829.89/221,156.32
  6. Step 6: Final answer
    x = 107,102.03

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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.