Home / 135,657.68-187,217.18-75,234.10

Finding the Fourth Proportional to 135,657.68, 187,217.18 and 75,234.10

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Solution

The fourth proportional to 135,657.68, 187,217.18 and 75,234.10 is: 103,828.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,657.68 : 187,217.18 = 75,234.10 : x
  2. Step 2: Convert to fraction form
    135,657.68/187,217.18 = 75,234.10/x
  3. Step 3: Cross multiply
    135,657.68x = 187,217.18 × 75,234.10
  4. Step 4: Simplify right side
    135,657.68x = 14,085,116,041.84
  5. Step 5: Solve for x
    x = 14,085,116,041.84/135,657.68
  6. Step 6: Final answer
    x = 103,828.37

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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.