Home / 120,823.61-166,718.04-69,826.49

Finding the Fourth Proportional to 120,823.61, 166,718.04 and 69,826.49

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Solution

The fourth proportional to 120,823.61, 166,718.04 and 69,826.49 is: 96,349.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,823.61 : 166,718.04 = 69,826.49 : x
  2. Step 2: Convert to fraction form
    120,823.61/166,718.04 = 69,826.49/x
  3. Step 3: Cross multiply
    120,823.61x = 166,718.04 × 69,826.49
  4. Step 4: Simplify right side
    120,823.61x = 11,641,335,310.65
  5. Step 5: Solve for x
    x = 11,641,335,310.65/120,823.61
  6. Step 6: Final answer
    x = 96,349.84

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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.