Home / 122,487.36-169,019.48-68,778.24

Finding the Fourth Proportional to 122,487.36, 169,019.48 and 68,778.24

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Solution

The fourth proportional to 122,487.36, 169,019.48 and 68,778.24 is: 94,906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,487.36 : 169,019.48 = 68,778.24 : x
  2. Step 2: Convert to fraction form
    122,487.36/169,019.48 = 68,778.24/x
  3. Step 3: Cross multiply
    122,487.36x = 169,019.48 × 68,778.24
  4. Step 4: Simplify right side
    122,487.36x = 11,624,862,360.12
  5. Step 5: Solve for x
    x = 11,624,862,360.12/122,487.36
  6. Step 6: Final answer
    x = 94,906.63

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1.5x scale

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.