Home / 109,934.40-164,901.60-109,278.30

Finding the Fourth Proportional to 109,934.40, 164,901.60 and 109,278.30

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Solution

The fourth proportional to 109,934.40, 164,901.60 and 109,278.30 is: 163,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,934.40 : 164,901.60 = 109,278.30 : x
  2. Step 2: Convert to fraction form
    109,934.40/164,901.60 = 109,278.30/x
  3. Step 3: Cross multiply
    109,934.40x = 164,901.60 × 109,278.30
  4. Step 4: Simplify right side
    109,934.40x = 18,020,166,515.28
  5. Step 5: Solve for x
    x = 18,020,166,515.28/109,934.40
  6. Step 6: Final answer
    x = 163,917.45

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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.