Home / 119,826.95-165,362.11-66,111.80

Finding the Fourth Proportional to 119,826.95, 165,362.11 and 66,111.80

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Solution

The fourth proportional to 119,826.95, 165,362.11 and 66,111.80 is: 91,234.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,826.95 : 165,362.11 = 66,111.80 : x
  2. Step 2: Convert to fraction form
    119,826.95/165,362.11 = 66,111.80/x
  3. Step 3: Cross multiply
    119,826.95x = 165,362.11 × 66,111.80
  4. Step 4: Simplify right side
    119,826.95x = 10,932,385,751.81
  5. Step 5: Solve for x
    x = 10,932,385,751.81/119,826.95
  6. Step 6: Final answer
    x = 91,234.79

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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.