Home / 103,954.81-143,457.44-58,632.65

Finding the Fourth Proportional to 103,954.81, 143,457.44 and 58,632.65

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Solution

The fourth proportional to 103,954.81, 143,457.44 and 58,632.65 is: 80,912.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,954.81 : 143,457.44 = 58,632.65 : x
  2. Step 2: Convert to fraction form
    103,954.81/143,457.44 = 58,632.65/x
  3. Step 3: Cross multiply
    103,954.81x = 143,457.44 × 58,632.65
  4. Step 4: Simplify right side
    103,954.81x = 8,411,289,869.42
  5. Step 5: Solve for x
    x = 8,411,289,869.42/103,954.81
  6. Step 6: Final answer
    x = 80,912.95

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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.