Home / 147,617.40-221,447.70-47,760.60

Finding the Fourth Proportional to 147,617.40, 221,447.70 and 47,760.60

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Solution

The fourth proportional to 147,617.40, 221,447.70 and 47,760.60 is: 71,647.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,617.40 : 221,447.70 = 47,760.60 : x
  2. Step 2: Convert to fraction form
    147,617.40/221,447.70 = 47,760.60/x
  3. Step 3: Cross multiply
    147,617.40x = 221,447.70 × 47,760.60
  4. Step 4: Simplify right side
    147,617.40x = 10,576,475,020.62
  5. Step 5: Solve for x
    x = 10,576,475,020.62/147,617.40
  6. Step 6: Final answer
    x = 71,647.89

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1.5x scale

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.