Home / 121,994.07-168,313.46-68,270.55

Finding the Fourth Proportional to 121,994.07, 168,313.46 and 68,270.55

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Solution

The fourth proportional to 121,994.07, 168,313.46 and 68,270.55 is: 94,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,994.07 : 168,313.46 = 68,270.55 : x
  2. Step 2: Convert to fraction form
    121,994.07/168,313.46 = 68,270.55/x
  3. Step 3: Cross multiply
    121,994.07x = 168,313.46 × 68,270.55
  4. Step 4: Simplify right side
    121,994.07x = 11,490,852,145.25
  5. Step 5: Solve for x
    x = 11,490,852,145.25/121,994.07
  6. Step 6: Final answer
    x = 94,191.89

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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.