Home / 68,165.40-102,307.18-68,007.80

Finding the Fourth Proportional to 68,165.40, 102,307.18 and 68,007.80

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Solution

The fourth proportional to 68,165.40, 102,307.18 and 68,007.80 is: 102,070.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,165.40 : 102,307.18 = 68,007.80 : x
  2. Step 2: Convert to fraction form
    68,165.40/102,307.18 = 68,007.80/x
  3. Step 3: Cross multiply
    68,165.40x = 102,307.18 × 68,007.80
  4. Step 4: Simplify right side
    68,165.40x = 6,957,686,236.00
  5. Step 5: Solve for x
    x = 6,957,686,236.00/68,165.40
  6. Step 6: Final answer
    x = 102,070.64

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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.