Home / 131,601.68-181,609.79-71,172.39

Finding the Fourth Proportional to 131,601.68, 181,609.79 and 71,172.39

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Solution

The fourth proportional to 131,601.68, 181,609.79 and 71,172.39 is: 98,217.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,601.68 : 181,609.79 = 71,172.39 : x
  2. Step 2: Convert to fraction form
    131,601.68/181,609.79 = 71,172.39/x
  3. Step 3: Cross multiply
    131,601.68x = 181,609.79 × 71,172.39
  4. Step 4: Simplify right side
    131,601.68x = 12,925,602,801.70
  5. Step 5: Solve for x
    x = 12,925,602,801.70/131,601.68
  6. Step 6: Final answer
    x = 98,217.61

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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.