Home / 100,193.85-149,995.40-74,015.46

Finding the Fourth Proportional to 100,193.85, 149,995.40 and 74,015.46

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Solution

The fourth proportional to 100,193.85, 149,995.40 and 74,015.46 is: 110,804.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,193.85 : 149,995.40 = 74,015.46 : x
  2. Step 2: Convert to fraction form
    100,193.85/149,995.40 = 74,015.46/x
  3. Step 3: Cross multiply
    100,193.85x = 149,995.40 × 74,015.46
  4. Step 4: Simplify right side
    100,193.85x = 11,101,978,158.81
  5. Step 5: Solve for x
    x = 11,101,978,158.81/100,193.85
  6. Step 6: Final answer
    x = 110,804.99

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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.