Home / 131,770.35-181,844.55-71,342.31

Finding the Fourth Proportional to 131,770.35, 181,844.55 and 71,342.31

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Solution

The fourth proportional to 131,770.35, 181,844.55 and 71,342.31 is: 98,453.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,770.35 : 181,844.55 = 71,342.31 : x
  2. Step 2: Convert to fraction form
    131,770.35/181,844.55 = 71,342.31/x
  3. Step 3: Cross multiply
    131,770.35x = 181,844.55 × 71,342.31
  4. Step 4: Simplify right side
    131,770.35x = 12,973,210,257.91
  5. Step 5: Solve for x
    x = 12,973,210,257.91/131,770.35
  6. Step 6: Final answer
    x = 98,453.18

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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.