Home / 112,831.44-155,709.09-61,843.77

Finding the Fourth Proportional to 112,831.44, 155,709.09 and 61,843.77

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Solution

The fourth proportional to 112,831.44, 155,709.09 and 61,843.77 is: 85,345.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,831.44 : 155,709.09 = 61,843.77 : x
  2. Step 2: Convert to fraction form
    112,831.44/155,709.09 = 61,843.77/x
  3. Step 3: Cross multiply
    112,831.44x = 155,709.09 × 61,843.77
  4. Step 4: Simplify right side
    112,831.44x = 9,629,637,148.87
  5. Step 5: Solve for x
    x = 9,629,637,148.87/112,831.44
  6. Step 6: Final answer
    x = 85,345.34

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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.