Home / 165,139.08-247,709.34-40,480.08

Finding the Fourth Proportional to 165,139.08, 247,709.34 and 40,480.08

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Solution

The fourth proportional to 165,139.08, 247,709.34 and 40,480.08 is: 60,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,139.08 : 247,709.34 = 40,480.08 : x
  2. Step 2: Convert to fraction form
    165,139.08/247,709.34 = 40,480.08/x
  3. Step 3: Cross multiply
    165,139.08x = 247,709.34 × 40,480.08
  4. Step 4: Simplify right side
    165,139.08x = 10,027,293,899.95
  5. Step 5: Solve for x
    x = 10,027,293,899.95/165,139.08
  6. Step 6: Final answer
    x = 60,720.30

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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.