Home / 109,720.82-164,564.40-34,831.20

Finding the Fourth Proportional to 109,720.82, 164,564.40 and 34,831.20

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Solution

The fourth proportional to 109,720.82, 164,564.40 and 34,831.20 is: 52,241.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,720.82 : 164,564.40 = 34,831.20 : x
  2. Step 2: Convert to fraction form
    109,720.82/164,564.40 = 34,831.20/x
  3. Step 3: Cross multiply
    109,720.82x = 164,564.40 × 34,831.20
  4. Step 4: Simplify right side
    109,720.82x = 5,731,975,529.28
  5. Step 5: Solve for x
    x = 5,731,975,529.28/109,720.82
  6. Step 6: Final answer
    x = 52,241.46

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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.