Home / 139,867.23-193,016.80-76,205.04

Finding the Fourth Proportional to 139,867.23, 193,016.80 and 76,205.04

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Solution

The fourth proportional to 139,867.23, 193,016.80 and 76,205.04 is: 105,162.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,867.23 : 193,016.80 = 76,205.04 : x
  2. Step 2: Convert to fraction form
    139,867.23/193,016.80 = 76,205.04/x
  3. Step 3: Cross multiply
    139,867.23x = 193,016.80 × 76,205.04
  4. Step 4: Simplify right side
    139,867.23x = 14,708,852,964.67
  5. Step 5: Solve for x
    x = 14,708,852,964.67/139,867.23
  6. Step 6: Final answer
    x = 105,162.97

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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.