Home / 122,355.03-168,851.09-68,641.20

Finding the Fourth Proportional to 122,355.03, 168,851.09 and 68,641.20

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Solution

The fourth proportional to 122,355.03, 168,851.09 and 68,641.20 is: 94,725.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,355.03 : 168,851.09 = 68,641.20 : x
  2. Step 2: Convert to fraction form
    122,355.03/168,851.09 = 68,641.20/x
  3. Step 3: Cross multiply
    122,355.03x = 168,851.09 × 68,641.20
  4. Step 4: Simplify right side
    122,355.03x = 11,590,141,265.44
  5. Step 5: Solve for x
    x = 11,590,141,265.44/122,355.03
  6. Step 6: Final answer
    x = 94,725.50

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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.