Home / 103,449.30-155,173.95-73,706.10

Finding the Fourth Proportional to 103,449.30, 155,173.95 and 73,706.10

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Solution

The fourth proportional to 103,449.30, 155,173.95 and 73,706.10 is: 110,559.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,449.30 : 155,173.95 = 73,706.10 : x
  2. Step 2: Convert to fraction form
    103,449.30/155,173.95 = 73,706.10/x
  3. Step 3: Cross multiply
    103,449.30x = 155,173.95 × 73,706.10
  4. Step 4: Simplify right side
    103,449.30x = 11,437,266,676.10
  5. Step 5: Solve for x
    x = 11,437,266,676.10/103,449.30
  6. Step 6: Final answer
    x = 110,559.15

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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.