Home / 185,296.28-277,937.88-78,611.72

Finding the Fourth Proportional to 185,296.28, 277,937.88 and 78,611.72

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Solution

The fourth proportional to 185,296.28, 277,937.88 and 78,611.72 is: 117,914.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,296.28 : 277,937.88 = 78,611.72 : x
  2. Step 2: Convert to fraction form
    185,296.28/277,937.88 = 78,611.72/x
  3. Step 3: Cross multiply
    185,296.28x = 277,937.88 × 78,611.72
  4. Step 4: Simplify right side
    185,296.28x = 21,849,174,799.95
  5. Step 5: Solve for x
    x = 21,849,174,799.95/185,296.28
  6. Step 6: Final answer
    x = 117,914.81

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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.