Home / 206,346.11-309,606.65-112,742.51

Finding the Fourth Proportional to 206,346.11, 309,606.65 and 112,742.51

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Solution

The fourth proportional to 206,346.11, 309,606.65 and 112,742.51 is: 169,161.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,346.11 : 309,606.65 = 112,742.51 : x
  2. Step 2: Convert to fraction form
    206,346.11/309,606.65 = 112,742.51/x
  3. Step 3: Cross multiply
    206,346.11x = 309,606.65 × 112,742.51
  4. Step 4: Simplify right side
    206,346.11x = 34,905,830,269.98
  5. Step 5: Solve for x
    x = 34,905,830,269.98/206,346.11
  6. Step 6: Final answer
    x = 169,161.56

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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.