Home / 135,773.96-187,355.65-80,573.78

Finding the Fourth Proportional to 135,773.96, 187,355.65 and 80,573.78

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Solution

The fourth proportional to 135,773.96, 187,355.65 and 80,573.78 is: 111,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,773.96 : 187,355.65 = 80,573.78 : x
  2. Step 2: Convert to fraction form
    135,773.96/187,355.65 = 80,573.78/x
  3. Step 3: Cross multiply
    135,773.96x = 187,355.65 × 80,573.78
  4. Step 4: Simplify right side
    135,773.96x = 15,095,952,924.86
  5. Step 5: Solve for x
    x = 15,095,952,924.86/135,773.96
  6. Step 6: Final answer
    x = 111,184.45

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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.