Home / 113,401.36-169,907.64-80,061.76

Finding the Fourth Proportional to 113,401.36, 169,907.64 and 80,061.76

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Solution

The fourth proportional to 113,401.36, 169,907.64 and 80,061.76 is: 119,955.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,401.36 : 169,907.64 = 80,061.76 : x
  2. Step 2: Convert to fraction form
    113,401.36/169,907.64 = 80,061.76/x
  3. Step 3: Cross multiply
    113,401.36x = 169,907.64 × 80,061.76
  4. Step 4: Simplify right side
    113,401.36x = 13,603,104,695.85
  5. Step 5: Solve for x
    x = 13,603,104,695.85/113,401.36
  6. Step 6: Final answer
    x = 119,955.39

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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.