Home / 101,869.82-140,565.42-56,548.19

Finding the Fourth Proportional to 101,869.82, 140,565.42 and 56,548.19

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Solution

The fourth proportional to 101,869.82, 140,565.42 and 56,548.19 is: 78,028.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,869.82 : 140,565.42 = 56,548.19 : x
  2. Step 2: Convert to fraction form
    101,869.82/140,565.42 = 56,548.19/x
  3. Step 3: Cross multiply
    101,869.82x = 140,565.42 × 56,548.19
  4. Step 4: Simplify right side
    101,869.82x = 7,948,719,374.76
  5. Step 5: Solve for x
    x = 7,948,719,374.76/101,869.82
  6. Step 6: Final answer
    x = 78,028.21

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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.