Home / 135,741.81-187,323.48-75,321.66

Finding the Fourth Proportional to 135,741.81, 187,323.48 and 75,321.66

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Solution

The fourth proportional to 135,741.81, 187,323.48 and 75,321.66 is: 103,943.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,741.81 : 187,323.48 = 75,321.66 : x
  2. Step 2: Convert to fraction form
    135,741.81/187,323.48 = 75,321.66/x
  3. Step 3: Cross multiply
    135,741.81x = 187,323.48 × 75,321.66
  4. Step 4: Simplify right side
    135,741.81x = 14,109,515,470.58
  5. Step 5: Solve for x
    x = 14,109,515,470.58/135,741.81
  6. Step 6: Final answer
    x = 103,943.77

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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.