Home / 135,615.90-187,154.37-75,192.17

Finding the Fourth Proportional to 135,615.90, 187,154.37 and 75,192.17

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Solution

The fourth proportional to 135,615.90, 187,154.37 and 75,192.17 is: 103,767.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,615.90 : 187,154.37 = 75,192.17 : x
  2. Step 2: Convert to fraction form
    135,615.90/187,154.37 = 75,192.17/x
  3. Step 3: Cross multiply
    135,615.90x = 187,154.37 × 75,192.17
  4. Step 4: Simplify right side
    135,615.90x = 14,072,542,269.51
  5. Step 5: Solve for x
    x = 14,072,542,269.51/135,615.90
  6. Step 6: Final answer
    x = 103,767.64

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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.