Home / 209,860.34-314,883.45-109,996.79

Finding the Fourth Proportional to 209,860.34, 314,883.45 and 109,996.79

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Solution

The fourth proportional to 209,860.34, 314,883.45 and 109,996.79 is: 165,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,860.34 : 314,883.45 = 109,996.79 : x
  2. Step 2: Convert to fraction form
    209,860.34/314,883.45 = 109,996.79/x
  3. Step 3: Cross multiply
    209,860.34x = 314,883.45 × 109,996.79
  4. Step 4: Simplify right side
    209,860.34x = 34,636,167,149.71
  5. Step 5: Solve for x
    x = 34,636,167,149.71/209,860.34
  6. Step 6: Final answer
    x = 165,043.90

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1.5x scale

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.