Home / 121,981.14-168,332.43-68,266.60

Finding the Fourth Proportional to 121,981.14, 168,332.43 and 68,266.60

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Solution

The fourth proportional to 121,981.14, 168,332.43 and 68,266.60 is: 94,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,981.14 : 168,332.43 = 68,266.60 : x
  2. Step 2: Convert to fraction form
    121,981.14/168,332.43 = 68,266.60/x
  3. Step 3: Cross multiply
    121,981.14x = 168,332.43 × 68,266.60
  4. Step 4: Simplify right side
    121,981.14x = 11,491,482,117.01
  5. Step 5: Solve for x
    x = 11,491,482,117.01/121,981.14
  6. Step 6: Final answer
    x = 94,207.04

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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.