Home / 155,719.49-214,892.88-84,099.52

Finding the Fourth Proportional to 155,719.49, 214,892.88 and 84,099.52

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Solution

The fourth proportional to 155,719.49, 214,892.88 and 84,099.52 is: 116,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,719.49 : 214,892.88 = 84,099.52 : x
  2. Step 2: Convert to fraction form
    155,719.49/214,892.88 = 84,099.52/x
  3. Step 3: Cross multiply
    155,719.49x = 214,892.88 × 84,099.52
  4. Step 4: Simplify right side
    155,719.49x = 18,072,386,984.95
  5. Step 5: Solve for x
    x = 18,072,386,984.95/155,719.49
  6. Step 6: Final answer
    x = 116,057.32

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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.