Home / 99,215.91-148,831.50-28,137.33

Finding the Fourth Proportional to 99,215.91, 148,831.50 and 28,137.33

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Solution

The fourth proportional to 99,215.91, 148,831.50 and 28,137.33 is: 42,208.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,215.91 : 148,831.50 = 28,137.33 : x
  2. Step 2: Convert to fraction form
    99,215.91/148,831.50 = 28,137.33/x
  3. Step 3: Cross multiply
    99,215.91x = 148,831.50 × 28,137.33
  4. Step 4: Simplify right side
    99,215.91x = 4,187,721,029.90
  5. Step 5: Solve for x
    x = 4,187,721,029.90/99,215.91
  6. Step 6: Final answer
    x = 42,208.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.