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Finding the Fourth Proportional to 101,999.30, 152,696.55 and 75,820.10

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Solution

The fourth proportional to 101,999.30, 152,696.55 and 75,820.10 is: 113,505.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,999.30 : 152,696.55 = 75,820.10 : x
  2. Step 2: Convert to fraction form
    101,999.30/152,696.55 = 75,820.10/x
  3. Step 3: Cross multiply
    101,999.30x = 152,696.55 × 75,820.10
  4. Step 4: Simplify right side
    101,999.30x = 11,577,467,690.66
  5. Step 5: Solve for x
    x = 11,577,467,690.66/101,999.30
  6. Step 6: Final answer
    x = 113,505.36

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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.