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Finding the Fourth Proportional to 123,672.94, 185,500.09 and 39,429.70

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Solution

The fourth proportional to 123,672.94, 185,500.09 and 39,429.70 is: 59,141.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,672.94 : 185,500.09 = 39,429.70 : x
  2. Step 2: Convert to fraction form
    123,672.94/185,500.09 = 39,429.70/x
  3. Step 3: Cross multiply
    123,672.94x = 185,500.09 × 39,429.70
  4. Step 4: Simplify right side
    123,672.94x = 7,314,212,484.21
  5. Step 5: Solve for x
    x = 7,314,212,484.21/123,672.94
  6. Step 6: Final answer
    x = 59,141.58

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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.