Home / 109,873.90-164,920.20-53,777.35

Finding the Fourth Proportional to 109,873.90, 164,920.20 and 53,777.35

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Solution

The fourth proportional to 109,873.90, 164,920.20 and 53,777.35 is: 80,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,873.90 : 164,920.20 = 53,777.35 : x
  2. Step 2: Convert to fraction form
    109,873.90/164,920.20 = 53,777.35/x
  3. Step 3: Cross multiply
    109,873.90x = 164,920.20 × 53,777.35
  4. Step 4: Simplify right side
    109,873.90x = 8,868,971,317.47
  5. Step 5: Solve for x
    x = 8,868,971,317.47/109,873.90
  6. Step 6: Final answer
    x = 80,719.55

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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.