Home / 121,996.49-168,355.13-68,281.50

Finding the Fourth Proportional to 121,996.49, 168,355.13 and 68,281.50

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Solution

The fourth proportional to 121,996.49, 168,355.13 and 68,281.50 is: 94,228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,996.49 : 168,355.13 = 68,281.50 : x
  2. Step 2: Convert to fraction form
    121,996.49/168,355.13 = 68,281.50/x
  3. Step 3: Cross multiply
    121,996.49x = 168,355.13 × 68,281.50
  4. Step 4: Simplify right side
    121,996.49x = 11,495,540,467.69
  5. Step 5: Solve for x
    x = 11,495,540,467.69/121,996.49
  6. Step 6: Final answer
    x = 94,228.46

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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.