Home / 121,852.25-168,171.76-68,140.27

Finding the Fourth Proportional to 121,852.25, 168,171.76 and 68,140.27

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Solution

The fourth proportional to 121,852.25, 168,171.76 and 68,140.27 is: 94,042.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,852.25 : 168,171.76 = 68,140.27 : x
  2. Step 2: Convert to fraction form
    121,852.25/168,171.76 = 68,140.27/x
  3. Step 3: Cross multiply
    121,852.25x = 168,171.76 × 68,140.27
  4. Step 4: Simplify right side
    121,852.25x = 11,459,269,428.17
  5. Step 5: Solve for x
    x = 11,459,269,428.17/121,852.25
  6. Step 6: Final answer
    x = 94,042.33

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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.