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Finding the Fourth Proportional to 104,375.80, 144,039.18 and 56,629.24

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Solution

The fourth proportional to 104,375.80, 144,039.18 and 56,629.24 is: 78,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,375.80 : 144,039.18 = 56,629.24 : x
  2. Step 2: Convert to fraction form
    104,375.80/144,039.18 = 56,629.24/x
  3. Step 3: Cross multiply
    104,375.80x = 144,039.18 × 56,629.24
  4. Step 4: Simplify right side
    104,375.80x = 8,156,829,293.62
  5. Step 5: Solve for x
    x = 8,156,829,293.62/104,375.80
  6. Step 6: Final answer
    x = 78,148.66

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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.