Home / 102,684.57-153,812.19-82,585.41

Finding the Fourth Proportional to 102,684.57, 153,812.19 and 82,585.41

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Solution

The fourth proportional to 102,684.57, 153,812.19 and 82,585.41 is: 123,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,684.57 : 153,812.19 = 82,585.41 : x
  2. Step 2: Convert to fraction form
    102,684.57/153,812.19 = 82,585.41/x
  3. Step 3: Cross multiply
    102,684.57x = 153,812.19 × 82,585.41
  4. Step 4: Simplify right side
    102,684.57x = 12,702,642,774.15
  5. Step 5: Solve for x
    x = 12,702,642,774.15/102,684.57
  6. Step 6: Final answer
    x = 123,705.47

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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.