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Finding the Fourth Proportional to 119,466, 178,903.26 and 69,394.32

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Solution

The fourth proportional to 119,466, 178,903.26 and 69,394.32 is: 103,919.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,466 : 178,903.26 = 69,394.32 : x
  2. Step 2: Convert to fraction form
    119,466/178,903.26 = 69,394.32/x
  3. Step 3: Cross multiply
    119,466x = 178,903.26 × 69,394.32
  4. Step 4: Simplify right side
    119,466x = 12,414,870,073.48
  5. Step 5: Solve for x
    x = 12,414,870,073.48/119,466
  6. Step 6: Final answer
    x = 103,919.69

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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.