Home / 68,150.90-102,192.47-43,172.02

Finding the Fourth Proportional to 68,150.90, 102,192.47 and 43,172.02

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Solution

The fourth proportional to 68,150.90, 102,192.47 and 43,172.02 is: 64,736.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,150.90 : 102,192.47 = 43,172.02 : x
  2. Step 2: Convert to fraction form
    68,150.90/102,192.47 = 43,172.02/x
  3. Step 3: Cross multiply
    68,150.90x = 102,192.47 × 43,172.02
  4. Step 4: Simplify right side
    68,150.90x = 4,411,855,432.46
  5. Step 5: Solve for x
    x = 4,411,855,432.46/68,150.90
  6. Step 6: Final answer
    x = 64,736.57

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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.