Home / 105,668.28-145,821.96-63,226.80

Finding the Fourth Proportional to 105,668.28, 145,821.96 and 63,226.80

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Solution

The fourth proportional to 105,668.28, 145,821.96 and 63,226.80 is: 87,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,668.28 : 145,821.96 = 63,226.80 : x
  2. Step 2: Convert to fraction form
    105,668.28/145,821.96 = 63,226.80/x
  3. Step 3: Cross multiply
    105,668.28x = 145,821.96 × 63,226.80
  4. Step 4: Simplify right side
    105,668.28x = 9,219,855,900.53
  5. Step 5: Solve for x
    x = 9,219,855,900.53/105,668.28
  6. Step 6: Final answer
    x = 87,252.82

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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.