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Finding the Fourth Proportional to 145,422.60, 218,133.90 and 96,174.60

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Solution

The fourth proportional to 145,422.60, 218,133.90 and 96,174.60 is: 144,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,422.60 : 218,133.90 = 96,174.60 : x
  2. Step 2: Convert to fraction form
    145,422.60/218,133.90 = 96,174.60/x
  3. Step 3: Cross multiply
    145,422.60x = 218,133.90 × 96,174.60
  4. Step 4: Simplify right side
    145,422.60x = 20,978,940,578.94
  5. Step 5: Solve for x
    x = 20,978,940,578.94/145,422.60
  6. Step 6: Final answer
    x = 144,261.90

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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.