Home / 104,489.20-144,194.64-56,742.16

Finding the Fourth Proportional to 104,489.20, 144,194.64 and 56,742.16

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Solution

The fourth proportional to 104,489.20, 144,194.64 and 56,742.16 is: 78,303.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,489.20 : 144,194.64 = 56,742.16 : x
  2. Step 2: Convert to fraction form
    104,489.20/144,194.64 = 56,742.16/x
  3. Step 3: Cross multiply
    104,489.20x = 144,194.64 × 56,742.16
  4. Step 4: Simplify right side
    104,489.20x = 8,181,915,334.02
  5. Step 5: Solve for x
    x = 8,181,915,334.02/104,489.20
  6. Step 6: Final answer
    x = 78,303.93

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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.