Home / 135,422.04-202,724.82-72,903

Finding the Fourth Proportional to 135,422.04, 202,724.82 and 72,903

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Solution

The fourth proportional to 135,422.04, 202,724.82 and 72,903 is: 109,134.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,422.04 : 202,724.82 = 72,903 : x
  2. Step 2: Convert to fraction form
    135,422.04/202,724.82 = 72,903/x
  3. Step 3: Cross multiply
    135,422.04x = 202,724.82 × 72,903
  4. Step 4: Simplify right side
    135,422.04x = 14,779,247,552.46
  5. Step 5: Solve for x
    x = 14,779,247,552.46/135,422.04
  6. Step 6: Final answer
    x = 109,134.73

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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.