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Finding the Fourth Proportional to 117,434.80, 176,152.20 and 115,490.80

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Solution

The fourth proportional to 117,434.80, 176,152.20 and 115,490.80 is: 173,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,434.80 : 176,152.20 = 115,490.80 : x
  2. Step 2: Convert to fraction form
    117,434.80/176,152.20 = 115,490.80/x
  3. Step 3: Cross multiply
    117,434.80x = 176,152.20 × 115,490.80
  4. Step 4: Simplify right side
    117,434.80x = 20,343,958,499.76
  5. Step 5: Solve for x
    x = 20,343,958,499.76/117,434.80
  6. Step 6: Final answer
    x = 173,236.20

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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.