Home / 144,301.20-199,135.08-80,638.98

Finding the Fourth Proportional to 144,301.20, 199,135.08 and 80,638.98

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Solution

The fourth proportional to 144,301.20, 199,135.08 and 80,638.98 is: 111,281.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,301.20 : 199,135.08 = 80,638.98 : x
  2. Step 2: Convert to fraction form
    144,301.20/199,135.08 = 80,638.98/x
  3. Step 3: Cross multiply
    144,301.20x = 199,135.08 × 80,638.98
  4. Step 4: Simplify right side
    144,301.20x = 16,058,049,733.42
  5. Step 5: Solve for x
    x = 16,058,049,733.42/144,301.20
  6. Step 6: Final answer
    x = 111,281.47

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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.