Home / 144,301.06-199,135.73-80,638.85

Finding the Fourth Proportional to 144,301.06, 199,135.73 and 80,638.85

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Solution

The fourth proportional to 144,301.06, 199,135.73 and 80,638.85 is: 111,281.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,301.06 : 199,135.73 = 80,638.85 : x
  2. Step 2: Convert to fraction form
    144,301.06/199,135.73 = 80,638.85/x
  3. Step 3: Cross multiply
    144,301.06x = 199,135.73 × 80,638.85
  4. Step 4: Simplify right side
    144,301.06x = 16,058,076,355.76
  5. Step 5: Solve for x
    x = 16,058,076,355.76/144,301.06
  6. Step 6: Final answer
    x = 111,281.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.