Home / 142,070.58-213,327-135,759.87

Finding the Fourth Proportional to 142,070.58, 213,327 and 135,759.87

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Solution

The fourth proportional to 142,070.58, 213,327 and 135,759.87 is: 203,851.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,070.58 : 213,327 = 135,759.87 : x
  2. Step 2: Convert to fraction form
    142,070.58/213,327 = 135,759.87/x
  3. Step 3: Cross multiply
    142,070.58x = 213,327 × 135,759.87
  4. Step 4: Simplify right side
    142,070.58x = 28,961,245,787.49
  5. Step 5: Solve for x
    x = 28,961,245,787.49/142,070.58
  6. Step 6: Final answer
    x = 203,851.11

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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.