Home / 199,125.90-298,251.45-120,102.30

Finding the Fourth Proportional to 199,125.90, 298,251.45 and 120,102.30

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Solution

The fourth proportional to 199,125.90, 298,251.45 and 120,102.30 is: 179,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,125.90 : 298,251.45 = 120,102.30 : x
  2. Step 2: Convert to fraction form
    199,125.90/298,251.45 = 120,102.30/x
  3. Step 3: Cross multiply
    199,125.90x = 298,251.45 × 120,102.30
  4. Step 4: Simplify right side
    199,125.90x = 35,820,685,123.34
  5. Step 5: Solve for x
    x = 35,820,685,123.34/199,125.90
  6. Step 6: Final answer
    x = 179,889.63

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1.5x scale

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.