Home / 106,399.68-146,926.08-66,182.40

Finding the Fourth Proportional to 106,399.68, 146,926.08 and 66,182.40

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Solution

The fourth proportional to 106,399.68, 146,926.08 and 66,182.40 is: 91,390.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,399.68 : 146,926.08 = 66,182.40 : x
  2. Step 2: Convert to fraction form
    106,399.68/146,926.08 = 66,182.40/x
  3. Step 3: Cross multiply
    106,399.68x = 146,926.08 × 66,182.40
  4. Step 4: Simplify right side
    106,399.68x = 9,723,920,596.99
  5. Step 5: Solve for x
    x = 9,723,920,596.99/106,399.68
  6. Step 6: Final answer
    x = 91,390.51

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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.