Home / 103,629.08-155,420.34-40,450.76

Finding the Fourth Proportional to 103,629.08, 155,420.34 and 40,450.76

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Solution

The fourth proportional to 103,629.08, 155,420.34 and 40,450.76 is: 60,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.08 : 155,420.34 = 40,450.76 : x
  2. Step 2: Convert to fraction form
    103,629.08/155,420.34 = 40,450.76/x
  3. Step 3: Cross multiply
    103,629.08x = 155,420.34 × 40,450.76
  4. Step 4: Simplify right side
    103,629.08x = 6,286,870,872.46
  5. Step 5: Solve for x
    x = 6,286,870,872.46/103,629.08
  6. Step 6: Final answer
    x = 60,667.05

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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.