Home / 113,356.29-169,615.03-68,403.64

Finding the Fourth Proportional to 113,356.29, 169,615.03 and 68,403.64

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Solution

The fourth proportional to 113,356.29, 169,615.03 and 68,403.64 is: 102,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,356.29 : 169,615.03 = 68,403.64 : x
  2. Step 2: Convert to fraction form
    113,356.29/169,615.03 = 68,403.64/x
  3. Step 3: Cross multiply
    113,356.29x = 169,615.03 × 68,403.64
  4. Step 4: Simplify right side
    113,356.29x = 11,602,285,013.37
  5. Step 5: Solve for x
    x = 11,602,285,013.37/113,356.29
  6. Step 6: Final answer
    x = 102,352.37

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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.