Home / 100,071.41-137,520.58-95,445.65

Finding the Fourth Proportional to 100,071.41, 137,520.58 and 95,445.65

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Solution

The fourth proportional to 100,071.41, 137,520.58 and 95,445.65 is: 131,163.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,071.41 : 137,520.58 = 95,445.65 : x
  2. Step 2: Convert to fraction form
    100,071.41/137,520.58 = 95,445.65/x
  3. Step 3: Cross multiply
    100,071.41x = 137,520.58 × 95,445.65
  4. Step 4: Simplify right side
    100,071.41x = 13,125,741,146.48
  5. Step 5: Solve for x
    x = 13,125,741,146.48/100,071.41
  6. Step 6: Final answer
    x = 131,163.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.