Home / 104,435.22-144,120.72-56,688.54

Finding the Fourth Proportional to 104,435.22, 144,120.72 and 56,688.54

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Solution

The fourth proportional to 104,435.22, 144,120.72 and 56,688.54 is: 78,230.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,435.22 : 144,120.72 = 56,688.54 : x
  2. Step 2: Convert to fraction form
    104,435.22/144,120.72 = 56,688.54/x
  3. Step 3: Cross multiply
    104,435.22x = 144,120.72 × 56,688.54
  4. Step 4: Simplify right side
    104,435.22x = 8,169,993,200.55
  5. Step 5: Solve for x
    x = 8,169,993,200.55/104,435.22
  6. Step 6: Final answer
    x = 78,230.25

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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.