Home / 131,701.62-181,748.70-71,272.26

Finding the Fourth Proportional to 131,701.62, 181,748.70 and 71,272.26

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Solution

The fourth proportional to 131,701.62, 181,748.70 and 71,272.26 is: 98,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,701.62 : 181,748.70 = 71,272.26 : x
  2. Step 2: Convert to fraction form
    131,701.62/181,748.70 = 71,272.26/x
  3. Step 3: Cross multiply
    131,701.62x = 181,748.70 × 71,272.26
  4. Step 4: Simplify right side
    131,701.62x = 12,953,640,601.06
  5. Step 5: Solve for x
    x = 12,953,640,601.06/131,701.62
  6. Step 6: Final answer
    x = 98,355.97

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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.