Home / 221,439.52-305,587.38-120,837.52

Finding the Fourth Proportional to 221,439.52, 305,587.38 and 120,837.52

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Solution

The fourth proportional to 221,439.52, 305,587.38 and 120,837.52 is: 166,756.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,439.52 : 305,587.38 = 120,837.52 : x
  2. Step 2: Convert to fraction form
    221,439.52/305,587.38 = 120,837.52/x
  3. Step 3: Cross multiply
    221,439.52x = 305,587.38 × 120,837.52
  4. Step 4: Simplify right side
    221,439.52x = 36,926,421,142.50
  5. Step 5: Solve for x
    x = 36,926,421,142.50/221,439.52
  6. Step 6: Final answer
    x = 166,756.24

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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.