Home / 139,324.02-192,270.96-81,967.38

Finding the Fourth Proportional to 139,324.02, 192,270.96 and 81,967.38

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Solution

The fourth proportional to 139,324.02, 192,270.96 and 81,967.38 is: 113,117.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,324.02 : 192,270.96 = 81,967.38 : x
  2. Step 2: Convert to fraction form
    139,324.02/192,270.96 = 81,967.38/x
  3. Step 3: Cross multiply
    139,324.02x = 192,270.96 × 81,967.38
  4. Step 4: Simplify right side
    139,324.02x = 15,759,946,841.28
  5. Step 5: Solve for x
    x = 15,759,946,841.28/139,324.02
  6. Step 6: Final answer
    x = 113,117.23

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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.