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Finding the Fourth Proportional to 134,407.60, 201,611.40 and 45,761.20

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Solution

The fourth proportional to 134,407.60, 201,611.40 and 45,761.20 is: 68,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,407.60 : 201,611.40 = 45,761.20 : x
  2. Step 2: Convert to fraction form
    134,407.60/201,611.40 = 45,761.20/x
  3. Step 3: Cross multiply
    134,407.60x = 201,611.40 × 45,761.20
  4. Step 4: Simplify right side
    134,407.60x = 9,225,979,597.68
  5. Step 5: Solve for x
    x = 9,225,979,597.68/134,407.60
  6. Step 6: Final answer
    x = 68,641.80

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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.