Home / 106,166.72-146,449.12-66,353.60

Finding the Fourth Proportional to 106,166.72, 146,449.12 and 66,353.60

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Solution

The fourth proportional to 106,166.72, 146,449.12 and 66,353.60 is: 91,529.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,166.72 : 146,449.12 = 66,353.60 : x
  2. Step 2: Convert to fraction form
    106,166.72/146,449.12 = 66,353.60/x
  3. Step 3: Cross multiply
    106,166.72x = 146,449.12 × 66,353.60
  4. Step 4: Simplify right side
    106,166.72x = 9,717,426,328.83
  5. Step 5: Solve for x
    x = 9,717,426,328.83/106,166.72
  6. Step 6: Final answer
    x = 91,529.87

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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.