Home / 109,953.60-164,930.40-83,381.55

Finding the Fourth Proportional to 109,953.60, 164,930.40 and 83,381.55

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Solution

The fourth proportional to 109,953.60, 164,930.40 and 83,381.55 is: 125,072.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,953.60 : 164,930.40 = 83,381.55 : x
  2. Step 2: Convert to fraction form
    109,953.60/164,930.40 = 83,381.55/x
  3. Step 3: Cross multiply
    109,953.60x = 164,930.40 × 83,381.55
  4. Step 4: Simplify right side
    109,953.60x = 13,752,152,394.12
  5. Step 5: Solve for x
    x = 13,752,152,394.12/109,953.60
  6. Step 6: Final answer
    x = 125,072.33

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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.