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Finding the Fourth Proportional to 143,118.54, 215,706.52 and 123,366.44

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Solution

The fourth proportional to 143,118.54, 215,706.52 and 123,366.44 is: 185,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,118.54 : 215,706.52 = 123,366.44 : x
  2. Step 2: Convert to fraction form
    143,118.54/215,706.52 = 123,366.44/x
  3. Step 3: Cross multiply
    143,118.54x = 215,706.52 × 123,366.44
  4. Step 4: Simplify right side
    143,118.54x = 26,610,945,457.19
  5. Step 5: Solve for x
    x = 26,610,945,457.19/143,118.54
  6. Step 6: Final answer
    x = 185,936.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.