Home / 106,669.80-160,134.30-80,166.60

Finding the Fourth Proportional to 106,669.80, 160,134.30 and 80,166.60

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Solution

The fourth proportional to 106,669.80, 160,134.30 and 80,166.60 is: 120,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,669.80 : 160,134.30 = 80,166.60 : x
  2. Step 2: Convert to fraction form
    106,669.80/160,134.30 = 80,166.60/x
  3. Step 3: Cross multiply
    106,669.80x = 160,134.30 × 80,166.60
  4. Step 4: Simplify right side
    106,669.80x = 12,837,422,374.38
  5. Step 5: Solve for x
    x = 12,837,422,374.38/106,669.80
  6. Step 6: Final answer
    x = 120,347.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.