Home / 132,085.80-197,999.10-68,938.20

Finding the Fourth Proportional to 132,085.80, 197,999.10 and 68,938.20

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Solution

The fourth proportional to 132,085.80, 197,999.10 and 68,938.20 is: 103,339.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,085.80 : 197,999.10 = 68,938.20 : x
  2. Step 2: Convert to fraction form
    132,085.80/197,999.10 = 68,938.20/x
  3. Step 3: Cross multiply
    132,085.80x = 197,999.10 × 68,938.20
  4. Step 4: Simplify right side
    132,085.80x = 13,649,701,555.62
  5. Step 5: Solve for x
    x = 13,649,701,555.62/132,085.80
  6. Step 6: Final answer
    x = 103,339.66

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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.