Home / 172,077.03-257,946.26-72,265.59

Finding the Fourth Proportional to 172,077.03, 257,946.26 and 72,265.59

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Solution

The fourth proportional to 172,077.03, 257,946.26 and 72,265.59 is: 108,327.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,077.03 : 257,946.26 = 72,265.59 : x
  2. Step 2: Convert to fraction form
    172,077.03/257,946.26 = 72,265.59/x
  3. Step 3: Cross multiply
    172,077.03x = 257,946.26 × 72,265.59
  4. Step 4: Simplify right side
    172,077.03x = 18,640,638,305.87
  5. Step 5: Solve for x
    x = 18,640,638,305.87/172,077.03
  6. Step 6: Final answer
    x = 108,327.29

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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.