Home / 135,288.60-202,711.24-72,041.57

Finding the Fourth Proportional to 135,288.60, 202,711.24 and 72,041.57

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Solution

The fourth proportional to 135,288.60, 202,711.24 and 72,041.57 is: 107,944.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,288.60 : 202,711.24 = 72,041.57 : x
  2. Step 2: Convert to fraction form
    135,288.60/202,711.24 = 72,041.57/x
  3. Step 3: Cross multiply
    135,288.60x = 202,711.24 × 72,041.57
  4. Step 4: Simplify right side
    135,288.60x = 14,603,635,986.25
  5. Step 5: Solve for x
    x = 14,603,635,986.25/135,288.60
  6. Step 6: Final answer
    x = 107,944.32

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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.