Home / 68,954.08-103,470-68,427.04

Finding the Fourth Proportional to 68,954.08, 103,470 and 68,427.04

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Solution

The fourth proportional to 68,954.08, 103,470 and 68,427.04 is: 102,679.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,954.08 : 103,470 = 68,427.04 : x
  2. Step 2: Convert to fraction form
    68,954.08/103,470 = 68,427.04/x
  3. Step 3: Cross multiply
    68,954.08x = 103,470 × 68,427.04
  4. Step 4: Simplify right side
    68,954.08x = 7,080,145,828.80
  5. Step 5: Solve for x
    x = 7,080,145,828.80/68,954.08
  6. Step 6: Final answer
    x = 102,679.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.