Home / 158,944-219,342.90-87,324.16

Finding the Fourth Proportional to 158,944, 219,342.90 and 87,324.16

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Solution

The fourth proportional to 158,944, 219,342.90 and 87,324.16 is: 120,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,944 : 219,342.90 = 87,324.16 : x
  2. Step 2: Convert to fraction form
    158,944/219,342.90 = 87,324.16/x
  3. Step 3: Cross multiply
    158,944x = 219,342.90 × 87,324.16
  4. Step 4: Simplify right side
    158,944x = 19,153,934,494.46
  5. Step 5: Solve for x
    x = 19,153,934,494.46/158,944
  6. Step 6: Final answer
    x = 120,507.44

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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.