Home / 140,382.42-193,727.84-76,720.22

Finding the Fourth Proportional to 140,382.42, 193,727.84 and 76,720.22

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Solution

The fourth proportional to 140,382.42, 193,727.84 and 76,720.22 is: 105,873.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,382.42 : 193,727.84 = 76,720.22 : x
  2. Step 2: Convert to fraction form
    140,382.42/193,727.84 = 76,720.22/x
  3. Step 3: Cross multiply
    140,382.42x = 193,727.84 × 76,720.22
  4. Step 4: Simplify right side
    140,382.42x = 14,862,841,152.68
  5. Step 5: Solve for x
    x = 14,862,841,152.68/140,382.42
  6. Step 6: Final answer
    x = 105,873.95

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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.