Home / 115,039.11-158,831.90-72,035.85

Finding the Fourth Proportional to 115,039.11, 158,831.90 and 72,035.85

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Solution

The fourth proportional to 115,039.11, 158,831.90 and 72,035.85 is: 99,458.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,039.11 : 158,831.90 = 72,035.85 : x
  2. Step 2: Convert to fraction form
    115,039.11/158,831.90 = 72,035.85/x
  3. Step 3: Cross multiply
    115,039.11x = 158,831.90 × 72,035.85
  4. Step 4: Simplify right side
    115,039.11x = 11,441,590,563.44
  5. Step 5: Solve for x
    x = 11,441,590,563.44/115,039.11
  6. Step 6: Final answer
    x = 99,458.27

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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.