Home / 102,880.06-141,942.99-67,057

Finding the Fourth Proportional to 102,880.06, 141,942.99 and 67,057

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Solution

The fourth proportional to 102,880.06, 141,942.99 and 67,057 is: 92,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,880.06 : 141,942.99 = 67,057 : x
  2. Step 2: Convert to fraction form
    102,880.06/141,942.99 = 67,057/x
  3. Step 3: Cross multiply
    102,880.06x = 141,942.99 × 67,057
  4. Step 4: Simplify right side
    102,880.06x = 9,518,271,080.43
  5. Step 5: Solve for x
    x = 9,518,271,080.43/102,880.06
  6. Step 6: Final answer
    x = 92,518.13

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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.