Home / 127,553.40-191,330.10-109,838.70

Finding the Fourth Proportional to 127,553.40, 191,330.10 and 109,838.70

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Solution

The fourth proportional to 127,553.40, 191,330.10 and 109,838.70 is: 164,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,553.40 : 191,330.10 = 109,838.70 : x
  2. Step 2: Convert to fraction form
    127,553.40/191,330.10 = 109,838.70/x
  3. Step 3: Cross multiply
    127,553.40x = 191,330.10 × 109,838.70
  4. Step 4: Simplify right side
    127,553.40x = 21,015,449,454.87
  5. Step 5: Solve for x
    x = 21,015,449,454.87/127,553.40
  6. Step 6: Final answer
    x = 164,758.05

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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.