Home / 140,253.16-193,540.86-76,578.04

Finding the Fourth Proportional to 140,253.16, 193,540.86 and 76,578.04

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Solution

The fourth proportional to 140,253.16, 193,540.86 and 76,578.04 is: 105,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,253.16 : 193,540.86 = 76,578.04 : x
  2. Step 2: Convert to fraction form
    140,253.16/193,540.86 = 76,578.04/x
  3. Step 3: Cross multiply
    140,253.16x = 193,540.86 × 76,578.04
  4. Step 4: Simplify right side
    140,253.16x = 14,820,979,718.71
  5. Step 5: Solve for x
    x = 14,820,979,718.71/140,253.16
  6. Step 6: Final answer
    x = 105,673.05

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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.