Home / 102,784.28-154,174.02-47,380.28

Finding the Fourth Proportional to 102,784.28, 154,174.02 and 47,380.28

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Solution

The fourth proportional to 102,784.28, 154,174.02 and 47,380.28 is: 71,069.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,784.28 : 154,174.02 = 47,380.28 : x
  2. Step 2: Convert to fraction form
    102,784.28/154,174.02 = 47,380.28/x
  3. Step 3: Cross multiply
    102,784.28x = 154,174.02 × 47,380.28
  4. Step 4: Simplify right side
    102,784.28x = 7,304,808,236.33
  5. Step 5: Solve for x
    x = 7,304,808,236.33/102,784.28
  6. Step 6: Final answer
    x = 71,069.31

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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.