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Finding the Fourth Proportional to 112,398.56, 154,949.11 and 69,349.30

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Solution

The fourth proportional to 112,398.56, 154,949.11 and 69,349.30 is: 95,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,398.56 : 154,949.11 = 69,349.30 : x
  2. Step 2: Convert to fraction form
    112,398.56/154,949.11 = 69,349.30/x
  3. Step 3: Cross multiply
    112,398.56x = 154,949.11 × 69,349.30
  4. Step 4: Simplify right side
    112,398.56x = 10,745,612,314.12
  5. Step 5: Solve for x
    x = 10,745,612,314.12/112,398.56
  6. Step 6: Final answer
    x = 95,602.76

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1.5x scale

Why These Related Problems?

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