Home / 131,609.34-181,605.51-74,249.56

Finding the Fourth Proportional to 131,609.34, 181,605.51 and 74,249.56

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Solution

The fourth proportional to 131,609.34, 181,605.51 and 74,249.56 is: 102,455.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,609.34 : 181,605.51 = 74,249.56 : x
  2. Step 2: Convert to fraction form
    131,609.34/181,605.51 = 74,249.56/x
  3. Step 3: Cross multiply
    131,609.34x = 181,605.51 × 74,249.56
  4. Step 4: Simplify right side
    131,609.34x = 13,484,129,438.08
  5. Step 5: Solve for x
    x = 13,484,129,438.08/131,609.34
  6. Step 6: Final answer
    x = 102,455.72

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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.