Home / 140,219.81-210,355.85-45,441.54

Finding the Fourth Proportional to 140,219.81, 210,355.85 and 45,441.54

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Solution

The fourth proportional to 140,219.81, 210,355.85 and 45,441.54 is: 68,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,219.81 : 210,355.85 = 45,441.54 : x
  2. Step 2: Convert to fraction form
    140,219.81/210,355.85 = 45,441.54/x
  3. Step 3: Cross multiply
    140,219.81x = 210,355.85 × 45,441.54
  4. Step 4: Simplify right side
    140,219.81x = 9,558,893,885.61
  5. Step 5: Solve for x
    x = 9,558,893,885.61/140,219.81
  6. Step 6: Final answer
    x = 68,170.78

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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.