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Finding the Fourth Proportional to 117,357.60, 176,014.80 and 72,904.80

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Solution

The fourth proportional to 117,357.60, 176,014.80 and 72,904.80 is: 109,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,357.60 : 176,014.80 = 72,904.80 : x
  2. Step 2: Convert to fraction form
    117,357.60/176,014.80 = 72,904.80/x
  3. Step 3: Cross multiply
    117,357.60x = 176,014.80 × 72,904.80
  4. Step 4: Simplify right side
    117,357.60x = 12,832,323,791.04
  5. Step 5: Solve for x
    x = 12,832,323,791.04/117,357.60
  6. Step 6: Final answer
    x = 109,343.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.