Home / 104,245.28-143,858.73-56,498.61

Finding the Fourth Proportional to 104,245.28, 143,858.73 and 56,498.61

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Solution

The fourth proportional to 104,245.28, 143,858.73 and 56,498.61 is: 77,968.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,245.28 : 143,858.73 = 56,498.61 : x
  2. Step 2: Convert to fraction form
    104,245.28/143,858.73 = 56,498.61/x
  3. Step 3: Cross multiply
    104,245.28x = 143,858.73 × 56,498.61
  4. Step 4: Simplify right side
    104,245.28x = 8,127,819,032.71
  5. Step 5: Solve for x
    x = 8,127,819,032.71/104,245.28
  6. Step 6: Final answer
    x = 77,968.22

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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.