Home / 134,217.70-201,456.15-81,729.70

Finding the Fourth Proportional to 134,217.70, 201,456.15 and 81,729.70

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Solution

The fourth proportional to 134,217.70, 201,456.15 and 81,729.70 is: 122,673.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,217.70 : 201,456.15 = 81,729.70 : x
  2. Step 2: Convert to fraction form
    134,217.70/201,456.15 = 81,729.70/x
  3. Step 3: Cross multiply
    134,217.70x = 201,456.15 × 81,729.70
  4. Step 4: Simplify right side
    134,217.70x = 16,464,950,702.66
  5. Step 5: Solve for x
    x = 16,464,950,702.66/134,217.70
  6. Step 6: Final answer
    x = 122,673.47

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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.