Home / 106,436.84-146,880-58,689.36

Finding the Fourth Proportional to 106,436.84, 146,880 and 58,689.36

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Solution

The fourth proportional to 106,436.84, 146,880 and 58,689.36 is: 80,989.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,436.84 : 146,880 = 58,689.36 : x
  2. Step 2: Convert to fraction form
    106,436.84/146,880 = 58,689.36/x
  3. Step 3: Cross multiply
    106,436.84x = 146,880 × 58,689.36
  4. Step 4: Simplify right side
    106,436.84x = 8,620,293,196.80
  5. Step 5: Solve for x
    x = 8,620,293,196.80/106,436.84
  6. Step 6: Final answer
    x = 80,989.75

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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.