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Finding the Fourth Proportional to 143,649.84, 215,374.64 and 63,644.32

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Solution

The fourth proportional to 143,649.84, 215,374.64 and 63,644.32 is: 95,422.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,649.84 : 215,374.64 = 63,644.32 : x
  2. Step 2: Convert to fraction form
    143,649.84/215,374.64 = 63,644.32/x
  3. Step 3: Cross multiply
    143,649.84x = 215,374.64 × 63,644.32
  4. Step 4: Simplify right side
    143,649.84x = 13,707,372,508.04
  5. Step 5: Solve for x
    x = 13,707,372,508.04/143,649.84
  6. Step 6: Final answer
    x = 95,422.12

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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.