Home / 140,382.65-193,727.62-76,720.45

Finding the Fourth Proportional to 140,382.65, 193,727.62 and 76,720.45

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Solution

The fourth proportional to 140,382.65, 193,727.62 and 76,720.45 is: 105,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,382.65 : 193,727.62 = 76,720.45 : x
  2. Step 2: Convert to fraction form
    140,382.65/193,727.62 = 76,720.45/x
  3. Step 3: Cross multiply
    140,382.65x = 193,727.62 × 76,720.45
  4. Step 4: Simplify right side
    140,382.65x = 14,862,870,183.83
  5. Step 5: Solve for x
    x = 14,862,870,183.83/140,382.65
  6. Step 6: Final answer
    x = 105,873.98

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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.