Home / 249,781.08-374,496.38-91,989.30

Finding the Fourth Proportional to 249,781.08, 374,496.38 and 91,989.30

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Solution

The fourth proportional to 249,781.08, 374,496.38 and 91,989.30 is: 137,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,781.08 : 374,496.38 = 91,989.30 : x
  2. Step 2: Convert to fraction form
    249,781.08/374,496.38 = 91,989.30/x
  3. Step 3: Cross multiply
    249,781.08x = 374,496.38 × 91,989.30
  4. Step 4: Simplify right side
    249,781.08x = 34,449,659,848.73
  5. Step 5: Solve for x
    x = 34,449,659,848.73/249,781.08
  6. Step 6: Final answer
    x = 137,919.41

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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.