Home / 159,053.10-219,493.43-87,437.85

Finding the Fourth Proportional to 159,053.10, 219,493.43 and 87,437.85

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Solution

The fourth proportional to 159,053.10, 219,493.43 and 87,437.85 is: 120,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,053.10 : 219,493.43 = 87,437.85 : x
  2. Step 2: Convert to fraction form
    159,053.10/219,493.43 = 87,437.85/x
  3. Step 3: Cross multiply
    159,053.10x = 219,493.43 × 87,437.85
  4. Step 4: Simplify right side
    159,053.10x = 19,192,033,608.33
  5. Step 5: Solve for x
    x = 19,192,033,608.33/159,053.10
  6. Step 6: Final answer
    x = 120,664.32

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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.