Home / 113,447.53-156,441.57-75,193.81

Finding the Fourth Proportional to 113,447.53, 156,441.57 and 75,193.81

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Solution

The fourth proportional to 113,447.53, 156,441.57 and 75,193.81 is: 103,690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,447.53 : 156,441.57 = 75,193.81 : x
  2. Step 2: Convert to fraction form
    113,447.53/156,441.57 = 75,193.81/x
  3. Step 3: Cross multiply
    113,447.53x = 156,441.57 × 75,193.81
  4. Step 4: Simplify right side
    113,447.53x = 11,763,437,690.68
  5. Step 5: Solve for x
    x = 11,763,437,690.68/113,447.53
  6. Step 6: Final answer
    x = 103,690.56

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1.5x scale

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.