Home / 103,685.51-155,520.96-40,493.76

Finding the Fourth Proportional to 103,685.51, 155,520.96 and 40,493.76

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Solution

The fourth proportional to 103,685.51, 155,520.96 and 40,493.76 is: 60,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,685.51 : 155,520.96 = 40,493.76 : x
  2. Step 2: Convert to fraction form
    103,685.51/155,520.96 = 40,493.76/x
  3. Step 3: Cross multiply
    103,685.51x = 155,520.96 × 40,493.76
  4. Step 4: Simplify right side
    103,685.51x = 6,297,628,429.21
  5. Step 5: Solve for x
    x = 6,297,628,429.21/103,685.51
  6. Step 6: Final answer
    x = 60,737.79

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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.