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Finding the Fourth Proportional to 159,893.31, 220,649.31 and 87,293.73

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Solution

The fourth proportional to 159,893.31, 220,649.31 and 87,293.73 is: 120,463.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,893.31 : 220,649.31 = 87,293.73 : x
  2. Step 2: Convert to fraction form
    159,893.31/220,649.31 = 87,293.73/x
  3. Step 3: Cross multiply
    159,893.31x = 220,649.31 × 87,293.73
  4. Step 4: Simplify right side
    159,893.31x = 19,261,301,291.83
  5. Step 5: Solve for x
    x = 19,261,301,291.83/159,893.31
  6. Step 6: Final answer
    x = 120,463.46

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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.