Home / 143,878.41-198,577.58-90,209.43

Finding the Fourth Proportional to 143,878.41, 198,577.58 and 90,209.43

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Solution

The fourth proportional to 143,878.41, 198,577.58 and 90,209.43 is: 124,504.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,878.41 : 198,577.58 = 90,209.43 : x
  2. Step 2: Convert to fraction form
    143,878.41/198,577.58 = 90,209.43/x
  3. Step 3: Cross multiply
    143,878.41x = 198,577.58 × 90,209.43
  4. Step 4: Simplify right side
    143,878.41x = 17,913,569,851.53
  5. Step 5: Solve for x
    x = 17,913,569,851.53/143,878.41
  6. Step 6: Final answer
    x = 124,504.92

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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.