Home / 131,391.40-197,135.70-52,562.20

Finding the Fourth Proportional to 131,391.40, 197,135.70 and 52,562.20

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Solution

The fourth proportional to 131,391.40, 197,135.70 and 52,562.20 is: 78,862.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,391.40 : 197,135.70 = 52,562.20 : x
  2. Step 2: Convert to fraction form
    131,391.40/197,135.70 = 52,562.20/x
  3. Step 3: Cross multiply
    131,391.40x = 197,135.70 × 52,562.20
  4. Step 4: Simplify right side
    131,391.40x = 10,361,886,090.54
  5. Step 5: Solve for x
    x = 10,361,886,090.54/131,391.40
  6. Step 6: Final answer
    x = 78,862.74

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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.