Home / 113,408.86-169,918.89-80,069.26

Finding the Fourth Proportional to 113,408.86, 169,918.89 and 80,069.26

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Solution

The fourth proportional to 113,408.86, 169,918.89 and 80,069.26 is: 119,966.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,408.86 : 169,918.89 = 80,069.26 : x
  2. Step 2: Convert to fraction form
    113,408.86/169,918.89 = 80,069.26/x
  3. Step 3: Cross multiply
    113,408.86x = 169,918.89 × 80,069.26
  4. Step 4: Simplify right side
    113,408.86x = 13,605,279,782.32
  5. Step 5: Solve for x
    x = 13,605,279,782.32/113,408.86
  6. Step 6: Final answer
    x = 119,966.64

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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.