Home / 104,620.96-144,378.39-56,874.34

Finding the Fourth Proportional to 104,620.96, 144,378.39 and 56,874.34

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Solution

The fourth proportional to 104,620.96, 144,378.39 and 56,874.34 is: 78,487.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,620.96 : 144,378.39 = 56,874.34 : x
  2. Step 2: Convert to fraction form
    104,620.96/144,378.39 = 56,874.34/x
  3. Step 3: Cross multiply
    104,620.96x = 144,378.39 × 56,874.34
  4. Step 4: Simplify right side
    104,620.96x = 8,211,425,641.51
  5. Step 5: Solve for x
    x = 8,211,425,641.51/104,620.96
  6. Step 6: Final answer
    x = 78,487.39

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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.