Home / 121,934.64-168,276.33-68,216.43

Finding the Fourth Proportional to 121,934.64, 168,276.33 and 68,216.43

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Solution

The fourth proportional to 121,934.64, 168,276.33 and 68,216.43 is: 94,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,934.64 : 168,276.33 = 68,216.43 : x
  2. Step 2: Convert to fraction form
    121,934.64/168,276.33 = 68,216.43/x
  3. Step 3: Cross multiply
    121,934.64x = 168,276.33 × 68,216.43
  4. Step 4: Simplify right side
    121,934.64x = 11,479,210,486.10
  5. Step 5: Solve for x
    x = 11,479,210,486.10/121,934.64
  6. Step 6: Final answer
    x = 94,142.32

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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.