Home / 121,900.50-168,227.28-68,185.35

Finding the Fourth Proportional to 121,900.50, 168,227.28 and 68,185.35

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Solution

The fourth proportional to 121,900.50, 168,227.28 and 68,185.35 is: 94,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,900.50 : 168,227.28 = 68,185.35 : x
  2. Step 2: Convert to fraction form
    121,900.50/168,227.28 = 68,185.35/x
  3. Step 3: Cross multiply
    121,900.50x = 168,227.28 × 68,185.35
  4. Step 4: Simplify right side
    121,900.50x = 11,470,635,966.35
  5. Step 5: Solve for x
    x = 11,470,635,966.35/121,900.50
  6. Step 6: Final answer
    x = 94,098.35

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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.