Home / 135,605.28-187,117.98-75,175.36

Finding the Fourth Proportional to 135,605.28, 187,117.98 and 75,175.36

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Solution

The fourth proportional to 135,605.28, 187,117.98 and 75,175.36 is: 103,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,605.28 : 187,117.98 = 75,175.36 : x
  2. Step 2: Convert to fraction form
    135,605.28/187,117.98 = 75,175.36/x
  3. Step 3: Cross multiply
    135,605.28x = 187,117.98 × 75,175.36
  4. Step 4: Simplify right side
    135,605.28x = 14,066,661,508.97
  5. Step 5: Solve for x
    x = 14,066,661,508.97/135,605.28
  6. Step 6: Final answer
    x = 103,732.40

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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.