Home / 206,966.11-310,315.65-98,836.96

Finding the Fourth Proportional to 206,966.11, 310,315.65 and 98,836.96

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Solution

The fourth proportional to 206,966.11, 310,315.65 and 98,836.96 is: 148,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,966.11 : 310,315.65 = 98,836.96 : x
  2. Step 2: Convert to fraction form
    206,966.11/310,315.65 = 98,836.96/x
  3. Step 3: Cross multiply
    206,966.11x = 310,315.65 × 98,836.96
  4. Step 4: Simplify right side
    206,966.11x = 30,670,655,486.42
  5. Step 5: Solve for x
    x = 30,670,655,486.42/206,966.11
  6. Step 6: Final answer
    x = 148,191.68

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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.