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Finding the Fourth Proportional to 134,468.60, 201,357.30 and 99,217.40

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Solution

The fourth proportional to 134,468.60, 201,357.30 and 99,217.40 is: 148,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,468.60 : 201,357.30 = 99,217.40 : x
  2. Step 2: Convert to fraction form
    134,468.60/201,357.30 = 99,217.40/x
  3. Step 3: Cross multiply
    134,468.60x = 201,357.30 × 99,217.40
  4. Step 4: Simplify right side
    134,468.60x = 19,978,147,777.02
  5. Step 5: Solve for x
    x = 19,978,147,777.02/134,468.60
  6. Step 6: Final answer
    x = 148,571.10

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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.