Home / 102,784.12-154,173.94-47,380.12

Finding the Fourth Proportional to 102,784.12, 154,173.94 and 47,380.12

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Solution

The fourth proportional to 102,784.12, 154,173.94 and 47,380.12 is: 71,069.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,784.12 : 154,173.94 = 47,380.12 : x
  2. Step 2: Convert to fraction form
    102,784.12/154,173.94 = 47,380.12/x
  3. Step 3: Cross multiply
    102,784.12x = 154,173.94 × 47,380.12
  4. Step 4: Simplify right side
    102,784.12x = 7,304,779,778.07
  5. Step 5: Solve for x
    x = 7,304,779,778.07/102,784.12
  6. Step 6: Final answer
    x = 71,069.15

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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.