Home / 103,922.30-155,494.20-74,005.70

Finding the Fourth Proportional to 103,922.30, 155,494.20 and 74,005.70

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Solution

The fourth proportional to 103,922.30, 155,494.20 and 74,005.70 is: 110,731.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,922.30 : 155,494.20 = 74,005.70 : x
  2. Step 2: Convert to fraction form
    103,922.30/155,494.20 = 74,005.70/x
  3. Step 3: Cross multiply
    103,922.30x = 155,494.20 × 74,005.70
  4. Step 4: Simplify right side
    103,922.30x = 11,507,457,116.94
  5. Step 5: Solve for x
    x = 11,507,457,116.94/103,922.30
  6. Step 6: Final answer
    x = 110,731.36

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1.5x scale

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.