Home / 135,615.66-187,160.64-75,205.26

Finding the Fourth Proportional to 135,615.66, 187,160.64 and 75,205.26

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Solution

The fourth proportional to 135,615.66, 187,160.64 and 75,205.26 is: 103,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,615.66 : 187,160.64 = 75,205.26 : x
  2. Step 2: Convert to fraction form
    135,615.66/187,160.64 = 75,205.26/x
  3. Step 3: Cross multiply
    135,615.66x = 187,160.64 × 75,205.26
  4. Step 4: Simplify right side
    135,615.66x = 14,075,464,592.97
  5. Step 5: Solve for x
    x = 14,075,464,592.97/135,615.66
  6. Step 6: Final answer
    x = 103,789.38

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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.