Home / 140,072.16-193,298.33-76,408.59

Finding the Fourth Proportional to 140,072.16, 193,298.33 and 76,408.59

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Solution

The fourth proportional to 140,072.16, 193,298.33 and 76,408.59 is: 105,443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,072.16 : 193,298.33 = 76,408.59 : x
  2. Step 2: Convert to fraction form
    140,072.16/193,298.33 = 76,408.59/x
  3. Step 3: Cross multiply
    140,072.16x = 193,298.33 × 76,408.59
  4. Step 4: Simplify right side
    140,072.16x = 14,769,652,844.65
  5. Step 5: Solve for x
    x = 14,769,652,844.65/140,072.16
  6. Step 6: Final answer
    x = 105,443.17

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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.