Home / 135,528.91-187,035.83-75,099.40

Finding the Fourth Proportional to 135,528.91, 187,035.83 and 75,099.40

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Solution

The fourth proportional to 135,528.91, 187,035.83 and 75,099.40 is: 103,640.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,528.91 : 187,035.83 = 75,099.40 : x
  2. Step 2: Convert to fraction form
    135,528.91/187,035.83 = 75,099.40/x
  3. Step 3: Cross multiply
    135,528.91x = 187,035.83 × 75,099.40
  4. Step 4: Simplify right side
    135,528.91x = 14,046,278,331.66
  5. Step 5: Solve for x
    x = 14,046,278,331.66/135,528.91
  6. Step 6: Final answer
    x = 103,640.46

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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.