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Finding the Fourth Proportional to 143,641.52, 215,476.99 and 54,969.60

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Solution

The fourth proportional to 143,641.52, 215,476.99 and 54,969.60 is: 82,460.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,641.52 : 215,476.99 = 54,969.60 : x
  2. Step 2: Convert to fraction form
    143,641.52/215,476.99 = 54,969.60/x
  3. Step 3: Cross multiply
    143,641.52x = 215,476.99 × 54,969.60
  4. Step 4: Simplify right side
    143,641.52x = 11,844,684,625.62
  5. Step 5: Solve for x
    x = 11,844,684,625.62/143,641.52
  6. Step 6: Final answer
    x = 82,460.04

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1.5x scale

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.