Home / 120,200.06-179,515.90-102,239.30

Finding the Fourth Proportional to 120,200.06, 179,515.90 and 102,239.30

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Solution

The fourth proportional to 120,200.06, 179,515.90 and 102,239.30 is: 152,691.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,200.06 : 179,515.90 = 102,239.30 : x
  2. Step 2: Convert to fraction form
    120,200.06/179,515.90 = 102,239.30/x
  3. Step 3: Cross multiply
    120,200.06x = 179,515.90 × 102,239.30
  4. Step 4: Simplify right side
    120,200.06x = 18,353,579,954.87
  5. Step 5: Solve for x
    x = 18,353,579,954.87/120,200.06
  6. Step 6: Final answer
    x = 152,691.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.