Home / 139,273.21-192,199.15-75,611.01

Finding the Fourth Proportional to 139,273.21, 192,199.15 and 75,611.01

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Solution

The fourth proportional to 139,273.21, 192,199.15 and 75,611.01 is: 104,344.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,273.21 : 192,199.15 = 75,611.01 : x
  2. Step 2: Convert to fraction form
    139,273.21/192,199.15 = 75,611.01/x
  3. Step 3: Cross multiply
    139,273.21x = 192,199.15 × 75,611.01
  4. Step 4: Simplify right side
    139,273.21x = 14,532,371,161.47
  5. Step 5: Solve for x
    x = 14,532,371,161.47/139,273.21
  6. Step 6: Final answer
    x = 104,344.34

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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.