Home / 159,317.28-219,858.84-87,695.46

Finding the Fourth Proportional to 159,317.28, 219,858.84 and 87,695.46

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Solution

The fourth proportional to 159,317.28, 219,858.84 and 87,695.46 is: 121,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,317.28 : 219,858.84 = 87,695.46 : x
  2. Step 2: Convert to fraction form
    159,317.28/219,858.84 = 87,695.46/x
  3. Step 3: Cross multiply
    159,317.28x = 219,858.84 × 87,695.46
  4. Step 4: Simplify right side
    159,317.28x = 19,280,622,108.87
  5. Step 5: Solve for x
    x = 19,280,622,108.87/159,317.28
  6. Step 6: Final answer
    x = 121,020.28

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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.