Home / 120,211.10-179,971.05-73,555.10

Finding the Fourth Proportional to 120,211.10, 179,971.05 and 73,555.10

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Solution

The fourth proportional to 120,211.10, 179,971.05 and 73,555.10 is: 110,121.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,211.10 : 179,971.05 = 73,555.10 : x
  2. Step 2: Convert to fraction form
    120,211.10/179,971.05 = 73,555.10/x
  3. Step 3: Cross multiply
    120,211.10x = 179,971.05 × 73,555.10
  4. Step 4: Simplify right side
    120,211.10x = 13,237,788,579.86
  5. Step 5: Solve for x
    x = 13,237,788,579.86/120,211.10
  6. Step 6: Final answer
    x = 110,121.18

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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.