Home / 131,417.69-181,346.18-80,409.25

Finding the Fourth Proportional to 131,417.69, 181,346.18 and 80,409.25

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Solution

The fourth proportional to 131,417.69, 181,346.18 and 80,409.25 is: 110,958.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,417.69 : 181,346.18 = 80,409.25 : x
  2. Step 2: Convert to fraction form
    131,417.69/181,346.18 = 80,409.25/x
  3. Step 3: Cross multiply
    131,417.69x = 181,346.18 × 80,409.25
  4. Step 4: Simplify right side
    131,417.69x = 14,581,910,148.80
  5. Step 5: Solve for x
    x = 14,581,910,148.80/131,417.69
  6. Step 6: Final answer
    x = 110,958.51

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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.