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Finding the Fourth Proportional to 139,325.02, 192,266.79 and 75,663.26

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Solution

The fourth proportional to 139,325.02, 192,266.79 and 75,663.26 is: 104,414.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,325.02 : 192,266.79 = 75,663.26 : x
  2. Step 2: Convert to fraction form
    139,325.02/192,266.79 = 75,663.26/x
  3. Step 3: Cross multiply
    139,325.02x = 192,266.79 × 75,663.26
  4. Step 4: Simplify right side
    139,325.02x = 14,547,532,121.14
  5. Step 5: Solve for x
    x = 14,547,532,121.14/139,325.02
  6. Step 6: Final answer
    x = 104,414.36

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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.