Home / 136,150.96-187,835.88-100,425.64

Finding the Fourth Proportional to 136,150.96, 187,835.88 and 100,425.64

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Solution

The fourth proportional to 136,150.96, 187,835.88 and 100,425.64 is: 138,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,150.96 : 187,835.88 = 100,425.64 : x
  2. Step 2: Convert to fraction form
    136,150.96/187,835.88 = 100,425.64/x
  3. Step 3: Cross multiply
    136,150.96x = 187,835.88 × 100,425.64
  4. Step 4: Simplify right side
    136,150.96x = 18,863,538,463.96
  5. Step 5: Solve for x
    x = 18,863,538,463.96/136,150.96
  6. Step 6: Final answer
    x = 138,548.70

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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.