Home / 159,368.49-219,928.17-87,748.56

Finding the Fourth Proportional to 159,368.49, 219,928.17 and 87,748.56

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Solution

The fourth proportional to 159,368.49, 219,928.17 and 87,748.56 is: 121,092.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,368.49 : 219,928.17 = 87,748.56 : x
  2. Step 2: Convert to fraction form
    159,368.49/219,928.17 = 87,748.56/x
  3. Step 3: Cross multiply
    159,368.49x = 219,928.17 × 87,748.56
  4. Step 4: Simplify right side
    159,368.49x = 19,298,380,220.94
  5. Step 5: Solve for x
    x = 19,298,380,220.94/159,368.49
  6. Step 6: Final answer
    x = 121,092.82

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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.