Home / 121,941.12-168,285.29-68,222.94

Finding the Fourth Proportional to 121,941.12, 168,285.29 and 68,222.94

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Solution

The fourth proportional to 121,941.12, 168,285.29 and 68,222.94 is: 94,151.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,941.12 : 168,285.29 = 68,222.94 : x
  2. Step 2: Convert to fraction form
    121,941.12/168,285.29 = 68,222.94/x
  3. Step 3: Cross multiply
    121,941.12x = 168,285.29 × 68,222.94
  4. Step 4: Simplify right side
    121,941.12x = 11,480,917,242.55
  5. Step 5: Solve for x
    x = 11,480,917,242.55/121,941.12
  6. Step 6: Final answer
    x = 94,151.32

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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.