Home / 122,542.08-169,116.48-68,828.64

Finding the Fourth Proportional to 122,542.08, 169,116.48 and 68,828.64

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Solution

The fourth proportional to 122,542.08, 169,116.48 and 68,828.64 is: 94,988.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,542.08 : 169,116.48 = 68,828.64 : x
  2. Step 2: Convert to fraction form
    122,542.08/169,116.48 = 68,828.64/x
  3. Step 3: Cross multiply
    122,542.08x = 169,116.48 × 68,828.64
  4. Step 4: Simplify right side
    122,542.08x = 11,640,057,319.99
  5. Step 5: Solve for x
    x = 11,640,057,319.99/122,542.08
  6. Step 6: Final answer
    x = 94,988.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.