Home / 97,408.20-146,112.30-79,897.80

Finding the Fourth Proportional to 97,408.20, 146,112.30 and 79,897.80

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Solution

The fourth proportional to 97,408.20, 146,112.30 and 79,897.80 is: 119,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,408.20 : 146,112.30 = 79,897.80 : x
  2. Step 2: Convert to fraction form
    97,408.20/146,112.30 = 79,897.80/x
  3. Step 3: Cross multiply
    97,408.20x = 146,112.30 × 79,897.80
  4. Step 4: Simplify right side
    97,408.20x = 11,674,051,322.94
  5. Step 5: Solve for x
    x = 11,674,051,322.94/97,408.20
  6. Step 6: Final answer
    x = 119,846.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.