Home / 135,723.46-187,298.85-75,295.30

Finding the Fourth Proportional to 135,723.46, 187,298.85 and 75,295.30

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Solution

The fourth proportional to 135,723.46, 187,298.85 and 75,295.30 is: 103,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,723.46 : 187,298.85 = 75,295.30 : x
  2. Step 2: Convert to fraction form
    135,723.46/187,298.85 = 75,295.30/x
  3. Step 3: Cross multiply
    135,723.46x = 187,298.85 × 75,295.30
  4. Step 4: Simplify right side
    135,723.46x = 14,102,723,100.41
  5. Step 5: Solve for x
    x = 14,102,723,100.41/135,723.46
  6. Step 6: Final answer
    x = 103,907.78

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1.5x scale

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.