Home / 105,194.58-145,172.30-57,449.94

Finding the Fourth Proportional to 105,194.58, 145,172.30 and 57,449.94

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Solution

The fourth proportional to 105,194.58, 145,172.30 and 57,449.94 is: 79,282.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,194.58 : 145,172.30 = 57,449.94 : x
  2. Step 2: Convert to fraction form
    105,194.58/145,172.30 = 57,449.94/x
  3. Step 3: Cross multiply
    105,194.58x = 145,172.30 × 57,449.94
  4. Step 4: Simplify right side
    105,194.58x = 8,340,139,637.41
  5. Step 5: Solve for x
    x = 8,340,139,637.41/105,194.58
  6. Step 6: Final answer
    x = 79,282.98

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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.