Home / 159,578.40-220,214.28-87,956.84

Finding the Fourth Proportional to 159,578.40, 220,214.28 and 87,956.84

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Solution

The fourth proportional to 159,578.40, 220,214.28 and 87,956.84 is: 121,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,578.40 : 220,214.28 = 87,956.84 : x
  2. Step 2: Convert to fraction form
    159,578.40/220,214.28 = 87,956.84/x
  3. Step 3: Cross multiply
    159,578.40x = 220,214.28 × 87,956.84
  4. Step 4: Simplify right side
    159,578.40x = 19,369,352,191.68
  5. Step 5: Solve for x
    x = 19,369,352,191.68/159,578.40
  6. Step 6: Final answer
    x = 121,378.28

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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.