Home / 121,897.96-168,217.98-68,182.36

Finding the Fourth Proportional to 121,897.96, 168,217.98 and 68,182.36

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Solution

The fourth proportional to 121,897.96, 168,217.98 and 68,182.36 is: 94,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,897.96 : 168,217.98 = 68,182.36 : x
  2. Step 2: Convert to fraction form
    121,897.96/168,217.98 = 68,182.36/x
  3. Step 3: Cross multiply
    121,897.96x = 168,217.98 × 68,182.36
  4. Step 4: Simplify right side
    121,897.96x = 11,469,498,870.83
  5. Step 5: Solve for x
    x = 11,469,498,870.83/121,897.96
  6. Step 6: Final answer
    x = 94,090.98

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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.