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Finding the Fourth Proportional to 126,165.64, 174,102.72 and 72,412.82

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Solution

The fourth proportional to 126,165.64, 174,102.72 and 72,412.82 is: 99,926.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,165.64 : 174,102.72 = 72,412.82 : x
  2. Step 2: Convert to fraction form
    126,165.64/174,102.72 = 72,412.82/x
  3. Step 3: Cross multiply
    126,165.64x = 174,102.72 × 72,412.82
  4. Step 4: Simplify right side
    126,165.64x = 12,607,268,924.87
  5. Step 5: Solve for x
    x = 12,607,268,924.87/126,165.64
  6. Step 6: Final answer
    x = 99,926.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.