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Finding the Fourth Proportional to 134,310.60, 201,465.90 and 99,318.60

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Solution

The fourth proportional to 134,310.60, 201,465.90 and 99,318.60 is: 148,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,310.60 : 201,465.90 = 99,318.60 : x
  2. Step 2: Convert to fraction form
    134,310.60/201,465.90 = 99,318.60/x
  3. Step 3: Cross multiply
    134,310.60x = 201,465.90 × 99,318.60
  4. Step 4: Simplify right side
    134,310.60x = 20,009,311,135.74
  5. Step 5: Solve for x
    x = 20,009,311,135.74/134,310.60
  6. Step 6: Final answer
    x = 148,977.90

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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.