Home / 131,769.04-181,841.39-71,339.73

Finding the Fourth Proportional to 131,769.04, 181,841.39 and 71,339.73

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Solution

The fourth proportional to 131,769.04, 181,841.39 and 71,339.73 is: 98,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,769.04 : 181,841.39 = 71,339.73 : x
  2. Step 2: Convert to fraction form
    131,769.04/181,841.39 = 71,339.73/x
  3. Step 3: Cross multiply
    131,769.04x = 181,841.39 × 71,339.73
  4. Step 4: Simplify right side
    131,769.04x = 12,972,515,665.42
  5. Step 5: Solve for x
    x = 12,972,515,665.42/131,769.04
  6. Step 6: Final answer
    x = 98,448.89

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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.