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Finding the Fourth Proportional to 103,672.93, 155,410.87 and 40,533.53

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Solution

The fourth proportional to 103,672.93, 155,410.87 and 40,533.53 is: 60,761.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,672.93 : 155,410.87 = 40,533.53 : x
  2. Step 2: Convert to fraction form
    103,672.93/155,410.87 = 40,533.53/x
  3. Step 3: Cross multiply
    103,672.93x = 155,410.87 × 40,533.53
  4. Step 4: Simplify right side
    103,672.93x = 6,299,351,161.47
  5. Step 5: Solve for x
    x = 6,299,351,161.47/103,672.93
  6. Step 6: Final answer
    x = 60,761.77

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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.