Home / 139,233.69-192,137.35-75,570.12

Finding the Fourth Proportional to 139,233.69, 192,137.35 and 75,570.12

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Solution

The fourth proportional to 139,233.69, 192,137.35 and 75,570.12 is: 104,283.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,233.69 : 192,137.35 = 75,570.12 : x
  2. Step 2: Convert to fraction form
    139,233.69/192,137.35 = 75,570.12/x
  3. Step 3: Cross multiply
    139,233.69x = 192,137.35 × 75,570.12
  4. Step 4: Simplify right side
    139,233.69x = 14,519,841,737.79
  5. Step 5: Solve for x
    x = 14,519,841,737.79/139,233.69
  6. Step 6: Final answer
    x = 104,283.97

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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.