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Finding the Fourth Proportional to 68,493.60, 102,740.40 and 67,510.80

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Solution

The fourth proportional to 68,493.60, 102,740.40 and 67,510.80 is: 101,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,493.60 : 102,740.40 = 67,510.80 : x
  2. Step 2: Convert to fraction form
    68,493.60/102,740.40 = 67,510.80/x
  3. Step 3: Cross multiply
    68,493.60x = 102,740.40 × 67,510.80
  4. Step 4: Simplify right side
    68,493.60x = 6,936,086,596.32
  5. Step 5: Solve for x
    x = 6,936,086,596.32/68,493.60
  6. Step 6: Final answer
    x = 101,266.20

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1.5x scale

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.