Home / 147,628.10-221,474.55-47,771.30

Finding the Fourth Proportional to 147,628.10, 221,474.55 and 47,771.30

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Solution

The fourth proportional to 147,628.10, 221,474.55 and 47,771.30 is: 71,667.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,628.10 : 221,474.55 = 47,771.30 : x
  2. Step 2: Convert to fraction form
    147,628.10/221,474.55 = 47,771.30/x
  3. Step 3: Cross multiply
    147,628.10x = 221,474.55 × 47,771.30
  4. Step 4: Simplify right side
    147,628.10x = 10,580,127,170.42
  5. Step 5: Solve for x
    x = 10,580,127,170.42/147,628.10
  6. Step 6: Final answer
    x = 71,667.43

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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.