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Finding the Fourth Proportional to 110,426.70, 165,640.05 and 75,434.70

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Solution

The fourth proportional to 110,426.70, 165,640.05 and 75,434.70 is: 113,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,426.70 : 165,640.05 = 75,434.70 : x
  2. Step 2: Convert to fraction form
    110,426.70/165,640.05 = 75,434.70/x
  3. Step 3: Cross multiply
    110,426.70x = 165,640.05 × 75,434.70
  4. Step 4: Simplify right side
    110,426.70x = 12,495,007,479.74
  5. Step 5: Solve for x
    x = 12,495,007,479.74/110,426.70
  6. Step 6: Final answer
    x = 113,152.05

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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.