Home / 165,916.08-247,662.84-142,374.90

Finding the Fourth Proportional to 165,916.08, 247,662.84 and 142,374.90

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Solution

The fourth proportional to 165,916.08, 247,662.84 and 142,374.90 is: 212,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,916.08 : 247,662.84 = 142,374.90 : x
  2. Step 2: Convert to fraction form
    165,916.08/247,662.84 = 142,374.90/x
  3. Step 3: Cross multiply
    165,916.08x = 247,662.84 × 142,374.90
  4. Step 4: Simplify right side
    165,916.08x = 35,260,972,078.72
  5. Step 5: Solve for x
    x = 35,260,972,078.72/165,916.08
  6. Step 6: Final answer
    x = 212,522.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.