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Finding the Fourth Proportional to 134,931.60, 202,224.60 and 103,611.60

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Solution

The fourth proportional to 134,931.60, 202,224.60 and 103,611.60 is: 155,284.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,931.60 : 202,224.60 = 103,611.60 : x
  2. Step 2: Convert to fraction form
    134,931.60/202,224.60 = 103,611.60/x
  3. Step 3: Cross multiply
    134,931.60x = 202,224.60 × 103,611.60
  4. Step 4: Simplify right side
    134,931.60x = 20,952,814,365.36
  5. Step 5: Solve for x
    x = 20,952,814,365.36/134,931.60
  6. Step 6: Final answer
    x = 155,284.71

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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.