Home / 131,759.76-181,827-71,328.96

Finding the Fourth Proportional to 131,759.76, 181,827 and 71,328.96

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Solution

The fourth proportional to 131,759.76, 181,827 and 71,328.96 is: 98,433.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,759.76 : 181,827 = 71,328.96 : x
  2. Step 2: Convert to fraction form
    131,759.76/181,827 = 71,328.96/x
  3. Step 3: Cross multiply
    131,759.76x = 181,827 × 71,328.96
  4. Step 4: Simplify right side
    131,759.76x = 12,969,530,809.92
  5. Step 5: Solve for x
    x = 12,969,530,809.92/131,759.76
  6. Step 6: Final answer
    x = 98,433.17

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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.