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Finding the Fourth Proportional to 143,656.29, 215,496.72 and 43,817.45

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Solution

The fourth proportional to 143,656.29, 215,496.72 and 43,817.45 is: 65,729.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,656.29 : 215,496.72 = 43,817.45 : x
  2. Step 2: Convert to fraction form
    143,656.29/215,496.72 = 43,817.45/x
  3. Step 3: Cross multiply
    143,656.29x = 215,496.72 × 43,817.45
  4. Step 4: Simplify right side
    143,656.29x = 9,442,515,676.28
  5. Step 5: Solve for x
    x = 9,442,515,676.28/143,656.29
  6. Step 6: Final answer
    x = 65,729.91

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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.