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Finding the Fourth Proportional to 100,777.80, 151,166.70 and 36,740.75

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Solution

The fourth proportional to 100,777.80, 151,166.70 and 36,740.75 is: 55,111.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,777.80 : 151,166.70 = 36,740.75 : x
  2. Step 2: Convert to fraction form
    100,777.80/151,166.70 = 36,740.75/x
  3. Step 3: Cross multiply
    100,777.80x = 151,166.70 × 36,740.75
  4. Step 4: Simplify right side
    100,777.80x = 5,553,977,177.19
  5. Step 5: Solve for x
    x = 5,553,977,177.19/100,777.80
  6. Step 6: Final answer
    x = 55,111.12

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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.