Home / 135,771.86-187,360.26-75,345.14

Finding the Fourth Proportional to 135,771.86, 187,360.26 and 75,345.14

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Solution

The fourth proportional to 135,771.86, 187,360.26 and 75,345.14 is: 103,973.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,771.86 : 187,360.26 = 75,345.14 : x
  2. Step 2: Convert to fraction form
    135,771.86/187,360.26 = 75,345.14/x
  3. Step 3: Cross multiply
    135,771.86x = 187,360.26 × 75,345.14
  4. Step 4: Simplify right side
    135,771.86x = 14,116,685,020.14
  5. Step 5: Solve for x
    x = 14,116,685,020.14/135,771.86
  6. Step 6: Final answer
    x = 103,973.57

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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.