Home / 131,420.60-197,147.31-51,448.24

Finding the Fourth Proportional to 131,420.60, 197,147.31 and 51,448.24

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Solution

The fourth proportional to 131,420.60, 197,147.31 and 51,448.24 is: 77,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,420.60 : 197,147.31 = 51,448.24 : x
  2. Step 2: Convert to fraction form
    131,420.60/197,147.31 = 51,448.24/x
  3. Step 3: Cross multiply
    131,420.60x = 197,147.31 × 51,448.24
  4. Step 4: Simplify right side
    131,420.60x = 10,142,882,120.23
  5. Step 5: Solve for x
    x = 10,142,882,120.23/131,420.60
  6. Step 6: Final answer
    x = 77,178.78

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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.