Home / 109,371.40-163,967.10-49,403.80

Finding the Fourth Proportional to 109,371.40, 163,967.10 and 49,403.80

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Solution

The fourth proportional to 109,371.40, 163,967.10 and 49,403.80 is: 74,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,371.40 : 163,967.10 = 49,403.80 : x
  2. Step 2: Convert to fraction form
    109,371.40/163,967.10 = 49,403.80/x
  3. Step 3: Cross multiply
    109,371.40x = 163,967.10 × 49,403.80
  4. Step 4: Simplify right side
    109,371.40x = 8,100,597,814.98
  5. Step 5: Solve for x
    x = 8,100,597,814.98/109,371.40
  6. Step 6: Final answer
    x = 74,065.05

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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.