Home / 131,391.48-197,324.80-121,385.46

Finding the Fourth Proportional to 131,391.48, 197,324.80 and 121,385.46

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Solution

The fourth proportional to 131,391.48, 197,324.80 and 121,385.46 is: 182,297.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,391.48 : 197,324.80 = 121,385.46 : x
  2. Step 2: Convert to fraction form
    131,391.48/197,324.80 = 121,385.46/x
  3. Step 3: Cross multiply
    131,391.48x = 197,324.80 × 121,385.46
  4. Step 4: Simplify right side
    131,391.48x = 23,952,361,617.41
  5. Step 5: Solve for x
    x = 23,952,361,617.41/131,391.48
  6. Step 6: Final answer
    x = 182,297.68

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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.