Home / 165,739.10-248,608.65-72,427.10

Finding the Fourth Proportional to 165,739.10, 248,608.65 and 72,427.10

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Solution

The fourth proportional to 165,739.10, 248,608.65 and 72,427.10 is: 108,640.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,739.10 : 248,608.65 = 72,427.10 : x
  2. Step 2: Convert to fraction form
    165,739.10/248,608.65 = 72,427.10/x
  3. Step 3: Cross multiply
    165,739.10x = 248,608.65 × 72,427.10
  4. Step 4: Simplify right side
    165,739.10x = 18,006,003,554.42
  5. Step 5: Solve for x
    x = 18,006,003,554.42/165,739.10
  6. Step 6: Final answer
    x = 108,640.65

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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.