Home / 104,731.14-144,530.21-56,984.88

Finding the Fourth Proportional to 104,731.14, 144,530.21 and 56,984.88

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Solution

The fourth proportional to 104,731.14, 144,530.21 and 56,984.88 is: 78,639.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,731.14 : 144,530.21 = 56,984.88 : x
  2. Step 2: Convert to fraction form
    104,731.14/144,530.21 = 56,984.88/x
  3. Step 3: Cross multiply
    104,731.14x = 144,530.21 × 56,984.88
  4. Step 4: Simplify right side
    104,731.14x = 8,236,037,037.14
  5. Step 5: Solve for x
    x = 8,236,037,037.14/104,731.14
  6. Step 6: Final answer
    x = 78,639.81

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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.