Home / 113,410.86-169,921.88-80,071.26

Finding the Fourth Proportional to 113,410.86, 169,921.88 and 80,071.26

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Solution

The fourth proportional to 113,410.86, 169,921.88 and 80,071.26 is: 119,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,410.86 : 169,921.88 = 80,071.26 : x
  2. Step 2: Convert to fraction form
    113,410.86/169,921.88 = 80,071.26/x
  3. Step 3: Cross multiply
    113,410.86x = 169,921.88 × 80,071.26
  4. Step 4: Simplify right side
    113,410.86x = 13,605,859,033.17
  5. Step 5: Solve for x
    x = 13,605,859,033.17/113,410.86
  6. Step 6: Final answer
    x = 119,969.63

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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.