Home / 113,402.36-169,909.14-80,062.76

Finding the Fourth Proportional to 113,402.36, 169,909.14 and 80,062.76

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Solution

The fourth proportional to 113,402.36, 169,909.14 and 80,062.76 is: 119,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,402.36 : 169,909.14 = 80,062.76 : x
  2. Step 2: Convert to fraction form
    113,402.36/169,909.14 = 80,062.76/x
  3. Step 3: Cross multiply
    113,402.36x = 169,909.14 × 80,062.76
  4. Step 4: Simplify right side
    113,402.36x = 13,603,394,697.63
  5. Step 5: Solve for x
    x = 13,603,394,697.63/113,402.36
  6. Step 6: Final answer
    x = 119,956.89

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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.