Home / 131,374.30-181,286.21-74,010.50

Finding the Fourth Proportional to 131,374.30, 181,286.21 and 74,010.50

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Solution

The fourth proportional to 131,374.30, 181,286.21 and 74,010.50 is: 102,128.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,374.30 : 181,286.21 = 74,010.50 : x
  2. Step 2: Convert to fraction form
    131,374.30/181,286.21 = 74,010.50/x
  3. Step 3: Cross multiply
    131,374.30x = 181,286.21 × 74,010.50
  4. Step 4: Simplify right side
    131,374.30x = 13,417,082,675.15
  5. Step 5: Solve for x
    x = 13,417,082,675.15/131,374.30
  6. Step 6: Final answer
    x = 102,128.67

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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.