Home / 143,822.40-215,733.60-137,261.40

Finding the Fourth Proportional to 143,822.40, 215,733.60 and 137,261.40

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Solution

The fourth proportional to 143,822.40, 215,733.60 and 137,261.40 is: 205,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,822.40 : 215,733.60 = 137,261.40 : x
  2. Step 2: Convert to fraction form
    143,822.40/215,733.60 = 137,261.40/x
  3. Step 3: Cross multiply
    143,822.40x = 215,733.60 × 137,261.40
  4. Step 4: Simplify right side
    143,822.40x = 29,611,895,963.04
  5. Step 5: Solve for x
    x = 29,611,895,963.04/143,822.40
  6. Step 6: Final answer
    x = 205,892.10

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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.