Home / 207,193.23-310,719.20-80,823.51

Finding the Fourth Proportional to 207,193.23, 310,719.20 and 80,823.51

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Solution

The fourth proportional to 207,193.23, 310,719.20 and 80,823.51 is: 121,207.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,193.23 : 310,719.20 = 80,823.51 : x
  2. Step 2: Convert to fraction form
    207,193.23/310,719.20 = 80,823.51/x
  3. Step 3: Cross multiply
    207,193.23x = 310,719.20 × 80,823.51
  4. Step 4: Simplify right side
    207,193.23x = 25,113,415,964.27
  5. Step 5: Solve for x
    x = 25,113,415,964.27/207,193.23
  6. Step 6: Final answer
    x = 121,207.71

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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.