Home / 135,612.96-187,079.40-117,682.80

Finding the Fourth Proportional to 135,612.96, 187,079.40 and 117,682.80

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Solution

The fourth proportional to 135,612.96, 187,079.40 and 117,682.80 is: 162,344.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,612.96 : 187,079.40 = 117,682.80 : x
  2. Step 2: Convert to fraction form
    135,612.96/187,079.40 = 117,682.80/x
  3. Step 3: Cross multiply
    135,612.96x = 187,079.40 × 117,682.80
  4. Step 4: Simplify right side
    135,612.96x = 22,016,027,614.32
  5. Step 5: Solve for x
    x = 22,016,027,614.32/135,612.96
  6. Step 6: Final answer
    x = 162,344.57

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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.