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Finding the Fourth Proportional to 100,820.55, 151,230.82 and 37,645.60

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Solution

The fourth proportional to 100,820.55, 151,230.82 and 37,645.60 is: 56,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,820.55 : 151,230.82 = 37,645.60 : x
  2. Step 2: Convert to fraction form
    100,820.55/151,230.82 = 37,645.60/x
  3. Step 3: Cross multiply
    100,820.55x = 151,230.82 × 37,645.60
  4. Step 4: Simplify right side
    100,820.55x = 5,693,174,732.55
  5. Step 5: Solve for x
    x = 5,693,174,732.55/100,820.55
  6. Step 6: Final answer
    x = 56,468.40

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1.5x scale

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.