Home / 135,661.03-187,210.24-75,231.79

Finding the Fourth Proportional to 135,661.03, 187,210.24 and 75,231.79

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Solution

The fourth proportional to 135,661.03, 187,210.24 and 75,231.79 is: 103,818.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,661.03 : 187,210.24 = 75,231.79 : x
  2. Step 2: Convert to fraction form
    135,661.03/187,210.24 = 75,231.79/x
  3. Step 3: Cross multiply
    135,661.03x = 187,210.24 × 75,231.79
  4. Step 4: Simplify right side
    135,661.03x = 14,084,160,805.42
  5. Step 5: Solve for x
    x = 14,084,160,805.42/135,661.03
  6. Step 6: Final answer
    x = 103,818.77

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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.