Home / 121,904.04-168,241.52-68,202.66

Finding the Fourth Proportional to 121,904.04, 168,241.52 and 68,202.66

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Solution

The fourth proportional to 121,904.04, 168,241.52 and 68,202.66 is: 94,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,904.04 : 168,241.52 = 68,202.66 : x
  2. Step 2: Convert to fraction form
    121,904.04/168,241.52 = 68,202.66/x
  3. Step 3: Cross multiply
    121,904.04x = 168,241.52 × 68,202.66
  4. Step 4: Simplify right side
    121,904.04x = 11,474,519,186.44
  5. Step 5: Solve for x
    x = 11,474,519,186.44/121,904.04
  6. Step 6: Final answer
    x = 94,127.47

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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.