Home / 206,165.12-284,538-115,527.20

Finding the Fourth Proportional to 206,165.12, 284,538 and 115,527.20

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Solution

The fourth proportional to 206,165.12, 284,538 and 115,527.20 is: 159,444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,165.12 : 284,538 = 115,527.20 : x
  2. Step 2: Convert to fraction form
    206,165.12/284,538 = 115,527.20/x
  3. Step 3: Cross multiply
    206,165.12x = 284,538 × 115,527.20
  4. Step 4: Simplify right side
    206,165.12x = 32,871,878,433.60
  5. Step 5: Solve for x
    x = 32,871,878,433.60/206,165.12
  6. Step 6: Final answer
    x = 159,444.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.