Home / 121,966.75-168,289.95-68,241.34

Finding the Fourth Proportional to 121,966.75, 168,289.95 and 68,241.34

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Solution

The fourth proportional to 121,966.75, 168,289.95 and 68,241.34 is: 94,159.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,966.75 : 168,289.95 = 68,241.34 : x
  2. Step 2: Convert to fraction form
    121,966.75/168,289.95 = 68,241.34/x
  3. Step 3: Cross multiply
    121,966.75x = 168,289.95 × 68,241.34
  4. Step 4: Simplify right side
    121,966.75x = 11,484,331,696.53
  5. Step 5: Solve for x
    x = 11,484,331,696.53/121,966.75
  6. Step 6: Final answer
    x = 94,159.53

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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.