Home / 209,830.80-314,839.15-109,967.14

Finding the Fourth Proportional to 209,830.80, 314,839.15 and 109,967.14

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Solution

The fourth proportional to 209,830.80, 314,839.15 and 109,967.14 is: 164,999.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,830.80 : 314,839.15 = 109,967.14 : x
  2. Step 2: Convert to fraction form
    209,830.80/314,839.15 = 109,967.14/x
  3. Step 3: Cross multiply
    209,830.80x = 314,839.15 × 109,967.14
  4. Step 4: Simplify right side
    209,830.80x = 34,621,962,508.21
  5. Step 5: Solve for x
    x = 34,621,962,508.21/209,830.80
  6. Step 6: Final answer
    x = 164,999.43

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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.