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Finding the Fourth Proportional to 104,419, 144,098.32 and 56,672.36

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Solution

The fourth proportional to 104,419, 144,098.32 and 56,672.36 is: 78,207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,419 : 144,098.32 = 56,672.36 : x
  2. Step 2: Convert to fraction form
    104,419/144,098.32 = 56,672.36/x
  3. Step 3: Cross multiply
    104,419x = 144,098.32 × 56,672.36
  4. Step 4: Simplify right side
    104,419x = 8,166,391,866.44
  5. Step 5: Solve for x
    x = 8,166,391,866.44/104,419
  6. Step 6: Final answer
    x = 78,207.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.