Home / 109,885.60-164,812.20-31,007.80

Finding the Fourth Proportional to 109,885.60, 164,812.20 and 31,007.80

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Solution

The fourth proportional to 109,885.60, 164,812.20 and 31,007.80 is: 46,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,885.60 : 164,812.20 = 31,007.80 : x
  2. Step 2: Convert to fraction form
    109,885.60/164,812.20 = 31,007.80/x
  3. Step 3: Cross multiply
    109,885.60x = 164,812.20 × 31,007.80
  4. Step 4: Simplify right side
    109,885.60x = 5,110,463,735.16
  5. Step 5: Solve for x
    x = 5,110,463,735.16/109,885.60
  6. Step 6: Final answer
    x = 46,507.13

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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.