Home / 135,554.36-187,066.39-75,126.33

Finding the Fourth Proportional to 135,554.36, 187,066.39 and 75,126.33

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Solution

The fourth proportional to 135,554.36, 187,066.39 and 75,126.33 is: 103,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,554.36 : 187,066.39 = 75,126.33 : x
  2. Step 2: Convert to fraction form
    135,554.36/187,066.39 = 75,126.33/x
  3. Step 3: Cross multiply
    135,554.36x = 187,066.39 × 75,126.33
  4. Step 4: Simplify right side
    135,554.36x = 14,053,611,159.23
  5. Step 5: Solve for x
    x = 14,053,611,159.23/135,554.36
  6. Step 6: Final answer
    x = 103,675.10

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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.