Home / 131,109.40-196,712.70-52,280.20

Finding the Fourth Proportional to 131,109.40, 196,712.70 and 52,280.20

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Solution

The fourth proportional to 131,109.40, 196,712.70 and 52,280.20 is: 78,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,109.40 : 196,712.70 = 52,280.20 : x
  2. Step 2: Convert to fraction form
    131,109.40/196,712.70 = 52,280.20/x
  3. Step 3: Cross multiply
    131,109.40x = 196,712.70 × 52,280.20
  4. Step 4: Simplify right side
    131,109.40x = 10,284,179,298.54
  5. Step 5: Solve for x
    x = 10,284,179,298.54/131,109.40
  6. Step 6: Final answer
    x = 78,439.68

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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.