Home / 159,584.61-220,236.62-87,964.47

Finding the Fourth Proportional to 159,584.61, 220,236.62 and 87,964.47

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Solution

The fourth proportional to 159,584.61, 220,236.62 and 87,964.47 is: 121,396.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,584.61 : 220,236.62 = 87,964.47 : x
  2. Step 2: Convert to fraction form
    159,584.61/220,236.62 = 87,964.47/x
  3. Step 3: Cross multiply
    159,584.61x = 220,236.62 × 87,964.47
  4. Step 4: Simplify right side
    159,584.61x = 19,372,997,113.07
  5. Step 5: Solve for x
    x = 19,372,997,113.07/159,584.61
  6. Step 6: Final answer
    x = 121,396.40

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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.