Home / 137,879.07-206,831.36-53,645.55

Finding the Fourth Proportional to 137,879.07, 206,831.36 and 53,645.55

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Solution

The fourth proportional to 137,879.07, 206,831.36 and 53,645.55 is: 80,473.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,879.07 : 206,831.36 = 53,645.55 : x
  2. Step 2: Convert to fraction form
    137,879.07/206,831.36 = 53,645.55/x
  3. Step 3: Cross multiply
    137,879.07x = 206,831.36 × 53,645.55
  4. Step 4: Simplify right side
    137,879.07x = 11,095,582,064.45
  5. Step 5: Solve for x
    x = 11,095,582,064.45/137,879.07
  6. Step 6: Final answer
    x = 80,473.29

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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.