Home / 159,376.15-219,943.25-87,749.47

Finding the Fourth Proportional to 159,376.15, 219,943.25 and 87,749.47

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Solution

The fourth proportional to 159,376.15, 219,943.25 and 87,749.47 is: 121,096.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,376.15 : 219,943.25 = 87,749.47 : x
  2. Step 2: Convert to fraction form
    159,376.15/219,943.25 = 87,749.47/x
  3. Step 3: Cross multiply
    159,376.15x = 219,943.25 × 87,749.47
  4. Step 4: Simplify right side
    159,376.15x = 19,299,903,617.58
  5. Step 5: Solve for x
    x = 19,299,903,617.58/159,376.15
  6. Step 6: Final answer
    x = 121,096.56

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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.