Home / 131,374.55-181,286.55-74,010.75

Finding the Fourth Proportional to 131,374.55, 181,286.55 and 74,010.75

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Solution

The fourth proportional to 131,374.55, 181,286.55 and 74,010.75 is: 102,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,374.55 : 181,286.55 = 74,010.75 : x
  2. Step 2: Convert to fraction form
    131,374.55/181,286.55 = 74,010.75/x
  3. Step 3: Cross multiply
    131,374.55x = 181,286.55 × 74,010.75
  4. Step 4: Simplify right side
    131,374.55x = 13,417,153,530.41
  5. Step 5: Solve for x
    x = 13,417,153,530.41/131,374.55
  6. Step 6: Final answer
    x = 102,129.02

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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.