Home / 105,052.08-144,972.92-57,306.43

Finding the Fourth Proportional to 105,052.08, 144,972.92 and 57,306.43

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Solution

The fourth proportional to 105,052.08, 144,972.92 and 57,306.43 is: 79,083.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,052.08 : 144,972.92 = 57,306.43 : x
  2. Step 2: Convert to fraction form
    105,052.08/144,972.92 = 57,306.43/x
  3. Step 3: Cross multiply
    105,052.08x = 144,972.92 × 57,306.43
  4. Step 4: Simplify right side
    105,052.08x = 8,307,880,491.88
  5. Step 5: Solve for x
    x = 8,307,880,491.88/105,052.08
  6. Step 6: Final answer
    x = 79,083.45

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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.