Home / 121,993.02-168,353.64-68,287.32

Finding the Fourth Proportional to 121,993.02, 168,353.64 and 68,287.32

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Solution

The fourth proportional to 121,993.02, 168,353.64 and 68,287.32 is: 94,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,993.02 : 168,353.64 = 68,287.32 : x
  2. Step 2: Convert to fraction form
    121,993.02/168,353.64 = 68,287.32/x
  3. Step 3: Cross multiply
    121,993.02x = 168,353.64 × 68,287.32
  4. Step 4: Simplify right side
    121,993.02x = 11,496,418,887.84
  5. Step 5: Solve for x
    x = 11,496,418,887.84/121,993.02
  6. Step 6: Final answer
    x = 94,238.33

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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.