Home / 135,528.85-187,031.39-75,100.22

Finding the Fourth Proportional to 135,528.85, 187,031.39 and 75,100.22

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Solution

The fourth proportional to 135,528.85, 187,031.39 and 75,100.22 is: 103,639.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,528.85 : 187,031.39 = 75,100.22 : x
  2. Step 2: Convert to fraction form
    135,528.85/187,031.39 = 75,100.22/x
  3. Step 3: Cross multiply
    135,528.85x = 187,031.39 × 75,100.22
  4. Step 4: Simplify right side
    135,528.85x = 14,046,098,535.91
  5. Step 5: Solve for x
    x = 14,046,098,535.91/135,528.85
  6. Step 6: Final answer
    x = 103,639.18

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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.