Home / 139,629.72-192,690.99-75,967.57

Finding the Fourth Proportional to 139,629.72, 192,690.99 and 75,967.57

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Solution

The fourth proportional to 139,629.72, 192,690.99 and 75,967.57 is: 104,836.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,629.72 : 192,690.99 = 75,967.57 : x
  2. Step 2: Convert to fraction form
    139,629.72/192,690.99 = 75,967.57/x
  3. Step 3: Cross multiply
    139,629.72x = 192,690.99 × 75,967.57
  4. Step 4: Simplify right side
    139,629.72x = 14,638,264,927.90
  5. Step 5: Solve for x
    x = 14,638,264,927.90/139,629.72
  6. Step 6: Final answer
    x = 104,836.31

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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.