Home / 131,266.96-181,171.01-76,068.54

Finding the Fourth Proportional to 131,266.96, 181,171.01 and 76,068.54

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Solution

The fourth proportional to 131,266.96, 181,171.01 and 76,068.54 is: 104,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,266.96 : 181,171.01 = 76,068.54 : x
  2. Step 2: Convert to fraction form
    131,266.96/181,171.01 = 76,068.54/x
  3. Step 3: Cross multiply
    131,266.96x = 181,171.01 × 76,068.54
  4. Step 4: Simplify right side
    131,266.96x = 13,781,414,221.03
  5. Step 5: Solve for x
    x = 13,781,414,221.03/131,266.96
  6. Step 6: Final answer
    x = 104,987.68

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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.