Home / 103,635.10-155,233.95-92,554.30

Finding the Fourth Proportional to 103,635.10, 155,233.95 and 92,554.30

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Solution

The fourth proportional to 103,635.10, 155,233.95 and 92,554.30 is: 138,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,635.10 : 155,233.95 = 92,554.30 : x
  2. Step 2: Convert to fraction form
    103,635.10/155,233.95 = 92,554.30/x
  3. Step 3: Cross multiply
    103,635.10x = 155,233.95 × 92,554.30
  4. Step 4: Simplify right side
    103,635.10x = 14,367,569,578.49
  5. Step 5: Solve for x
    x = 14,367,569,578.49/103,635.10
  6. Step 6: Final answer
    x = 138,636.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.