Home / 135,929.80-187,580.72-75,498.12

Finding the Fourth Proportional to 135,929.80, 187,580.72 and 75,498.12

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Solution

The fourth proportional to 135,929.80, 187,580.72 and 75,498.12 is: 104,186.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,929.80 : 187,580.72 = 75,498.12 : x
  2. Step 2: Convert to fraction form
    135,929.80/187,580.72 = 75,498.12/x
  3. Step 3: Cross multiply
    135,929.80x = 187,580.72 × 75,498.12
  4. Step 4: Simplify right side
    135,929.80x = 14,161,991,708.25
  5. Step 5: Solve for x
    x = 14,161,991,708.25/135,929.80
  6. Step 6: Final answer
    x = 104,186.07

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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.