Home / 149,815.01-206,743.32-81,831.96

Finding the Fourth Proportional to 149,815.01, 206,743.32 and 81,831.96

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Solution

The fourth proportional to 149,815.01, 206,743.32 and 81,831.96 is: 112,927.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,815.01 : 206,743.32 = 81,831.96 : x
  2. Step 2: Convert to fraction form
    149,815.01/206,743.32 = 81,831.96/x
  3. Step 3: Cross multiply
    149,815.01x = 206,743.32 × 81,831.96
  4. Step 4: Simplify right side
    149,815.01x = 16,918,211,092.51
  5. Step 5: Solve for x
    x = 16,918,211,092.51/149,815.01
  6. Step 6: Final answer
    x = 112,927.34

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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.