Home / 104,456.12-144,147.21-56,709.05

Finding the Fourth Proportional to 104,456.12, 144,147.21 and 56,709.05

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Solution

The fourth proportional to 104,456.12, 144,147.21 and 56,709.05 is: 78,257.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,456.12 : 144,147.21 = 56,709.05 : x
  2. Step 2: Convert to fraction form
    104,456.12/144,147.21 = 56,709.05/x
  3. Step 3: Cross multiply
    104,456.12x = 144,147.21 × 56,709.05
  4. Step 4: Simplify right side
    104,456.12x = 8,174,451,339.25
  5. Step 5: Solve for x
    x = 8,174,451,339.25/104,456.12
  6. Step 6: Final answer
    x = 78,257.28

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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.