Home / 101,855.40-152,782.56-55,403.52

Finding the Fourth Proportional to 101,855.40, 152,782.56 and 55,403.52

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Solution

The fourth proportional to 101,855.40, 152,782.56 and 55,403.52 is: 83,104.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,855.40 : 152,782.56 = 55,403.52 : x
  2. Step 2: Convert to fraction form
    101,855.40/152,782.56 = 55,403.52/x
  3. Step 3: Cross multiply
    101,855.40x = 152,782.56 × 55,403.52
  4. Step 4: Simplify right side
    101,855.40x = 8,464,691,618.61
  5. Step 5: Solve for x
    x = 8,464,691,618.61/101,855.40
  6. Step 6: Final answer
    x = 83,104.99

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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.