Home / 158,940.72-219,342.06-87,325.38

Finding the Fourth Proportional to 158,940.72, 219,342.06 and 87,325.38

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Solution

The fourth proportional to 158,940.72, 219,342.06 and 87,325.38 is: 120,511.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,940.72 : 219,342.06 = 87,325.38 : x
  2. Step 2: Convert to fraction form
    158,940.72/219,342.06 = 87,325.38/x
  3. Step 3: Cross multiply
    158,940.72x = 219,342.06 × 87,325.38
  4. Step 4: Simplify right side
    158,940.72x = 19,154,128,739.48
  5. Step 5: Solve for x
    x = 19,154,128,739.48/158,940.72
  6. Step 6: Final answer
    x = 120,511.15

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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.