Home / 127,611.40-176,165.94-79,891.24

Finding the Fourth Proportional to 127,611.40, 176,165.94 and 79,891.24

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Solution

The fourth proportional to 127,611.40, 176,165.94 and 79,891.24 is: 110,288.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,611.40 : 176,165.94 = 79,891.24 : x
  2. Step 2: Convert to fraction form
    127,611.40/176,165.94 = 79,891.24/x
  3. Step 3: Cross multiply
    127,611.40x = 176,165.94 × 79,891.24
  4. Step 4: Simplify right side
    127,611.40x = 14,074,115,392.37
  5. Step 5: Solve for x
    x = 14,074,115,392.37/127,611.40
  6. Step 6: Final answer
    x = 110,288.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.