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Finding the Fourth Proportional to 100,025.55, 150,097.95 and 35,978.31

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Solution

The fourth proportional to 100,025.55, 150,097.95 and 35,978.31 is: 53,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,025.55 : 150,097.95 = 35,978.31 : x
  2. Step 2: Convert to fraction form
    100,025.55/150,097.95 = 35,978.31/x
  3. Step 3: Cross multiply
    100,025.55x = 150,097.95 × 35,978.31
  4. Step 4: Simplify right side
    100,025.55x = 5,400,270,575.46
  5. Step 5: Solve for x
    x = 5,400,270,575.46/100,025.55
  6. Step 6: Final answer
    x = 53,988.91

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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.