Home / 165,590.64-248,416.20-76,831.92

Finding the Fourth Proportional to 165,590.64, 248,416.20 and 76,831.92

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Solution

The fourth proportional to 165,590.64, 248,416.20 and 76,831.92 is: 115,261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,590.64 : 248,416.20 = 76,831.92 : x
  2. Step 2: Convert to fraction form
    165,590.64/248,416.20 = 76,831.92/x
  3. Step 3: Cross multiply
    165,590.64x = 248,416.20 × 76,831.92
  4. Step 4: Simplify right side
    165,590.64x = 19,086,293,605.10
  5. Step 5: Solve for x
    x = 19,086,293,605.10/165,590.64
  6. Step 6: Final answer
    x = 115,261.91

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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.