Home / 131,729.40-197,018.10-117,790.20

Finding the Fourth Proportional to 131,729.40, 197,018.10 and 117,790.20

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Solution

The fourth proportional to 131,729.40, 197,018.10 and 117,790.20 is: 176,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,729.40 : 197,018.10 = 117,790.20 : x
  2. Step 2: Convert to fraction form
    131,729.40/197,018.10 = 117,790.20/x
  3. Step 3: Cross multiply
    131,729.40x = 197,018.10 × 117,790.20
  4. Step 4: Simplify right side
    131,729.40x = 23,206,801,402.62
  5. Step 5: Solve for x
    x = 23,206,801,402.62/131,729.40
  6. Step 6: Final answer
    x = 176,170.25

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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.