Home / 159,321.32-219,869.28-87,704.36

Finding the Fourth Proportional to 159,321.32, 219,869.28 and 87,704.36

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Solution

The fourth proportional to 159,321.32, 219,869.28 and 87,704.36 is: 121,035.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,321.32 : 219,869.28 = 87,704.36 : x
  2. Step 2: Convert to fraction form
    159,321.32/219,869.28 = 87,704.36/x
  3. Step 3: Cross multiply
    159,321.32x = 219,869.28 × 87,704.36
  4. Step 4: Simplify right side
    159,321.32x = 19,283,494,486.06
  5. Step 5: Solve for x
    x = 19,283,494,486.06/159,321.32
  6. Step 6: Final answer
    x = 121,035.24

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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.