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Finding the Fourth Proportional to 134,439.60, 201,659.40 and 99,447.60

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Solution

The fourth proportional to 134,439.60, 201,659.40 and 99,447.60 is: 149,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,439.60 : 201,659.40 = 99,447.60 : x
  2. Step 2: Convert to fraction form
    134,439.60/201,659.40 = 99,447.60/x
  3. Step 3: Cross multiply
    134,439.60x = 201,659.40 × 99,447.60
  4. Step 4: Simplify right side
    134,439.60x = 20,054,543,347.44
  5. Step 5: Solve for x
    x = 20,054,543,347.44/134,439.60
  6. Step 6: Final answer
    x = 149,171.40

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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.