Home / 135,641.52-187,186.86-75,212.82

Finding the Fourth Proportional to 135,641.52, 187,186.86 and 75,212.82

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Solution

The fourth proportional to 135,641.52, 187,186.86 and 75,212.82 is: 103,794.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,641.52 : 187,186.86 = 75,212.82 : x
  2. Step 2: Convert to fraction form
    135,641.52/187,186.86 = 75,212.82/x
  3. Step 3: Cross multiply
    135,641.52x = 187,186.86 × 75,212.82
  4. Step 4: Simplify right side
    135,641.52x = 14,078,851,607.55
  5. Step 5: Solve for x
    x = 14,078,851,607.55/135,641.52
  6. Step 6: Final answer
    x = 103,794.56

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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.