Home / 135,641.64-187,190.09-75,208.75

Finding the Fourth Proportional to 135,641.64, 187,190.09 and 75,208.75

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Solution

The fourth proportional to 135,641.64, 187,190.09 and 75,208.75 is: 103,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,641.64 : 187,190.09 = 75,208.75 : x
  2. Step 2: Convert to fraction form
    135,641.64/187,190.09 = 75,208.75/x
  3. Step 3: Cross multiply
    135,641.64x = 187,190.09 × 75,208.75
  4. Step 4: Simplify right side
    135,641.64x = 14,078,332,681.29
  5. Step 5: Solve for x
    x = 14,078,332,681.29/135,641.64
  6. Step 6: Final answer
    x = 103,790.64

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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.