Home / 140,305.81-193,626.27-76,647.71

Finding the Fourth Proportional to 140,305.81, 193,626.27 and 76,647.71

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Solution

The fourth proportional to 140,305.81, 193,626.27 and 76,647.71 is: 105,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,305.81 : 193,626.27 = 76,647.71 : x
  2. Step 2: Convert to fraction form
    140,305.81/193,626.27 = 76,647.71/x
  3. Step 3: Cross multiply
    140,305.81x = 193,626.27 × 76,647.71
  4. Step 4: Simplify right side
    140,305.81x = 14,841,008,935.78
  5. Step 5: Solve for x
    x = 14,841,008,935.78/140,305.81
  6. Step 6: Final answer
    x = 105,776.16

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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.