Home / 104,070.89-143,584.30-63,742.61

Finding the Fourth Proportional to 104,070.89, 143,584.30 and 63,742.61

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Solution

The fourth proportional to 104,070.89, 143,584.30 and 63,742.61 is: 87,944.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,070.89 : 143,584.30 = 63,742.61 : x
  2. Step 2: Convert to fraction form
    104,070.89/143,584.30 = 63,742.61/x
  3. Step 3: Cross multiply
    104,070.89x = 143,584.30 × 63,742.61
  4. Step 4: Simplify right side
    104,070.89x = 9,152,438,037.02
  5. Step 5: Solve for x
    x = 9,152,438,037.02/104,070.89
  6. Step 6: Final answer
    x = 87,944.27

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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.