Home / 139,961.45-193,151.76-79,534.64

Finding the Fourth Proportional to 139,961.45, 193,151.76 and 79,534.64

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Solution

The fourth proportional to 139,961.45, 193,151.76 and 79,534.64 is: 109,760.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,961.45 : 193,151.76 = 79,534.64 : x
  2. Step 2: Convert to fraction form
    139,961.45/193,151.76 = 79,534.64/x
  3. Step 3: Cross multiply
    139,961.45x = 193,151.76 × 79,534.64
  4. Step 4: Simplify right side
    139,961.45x = 15,362,254,731.21
  5. Step 5: Solve for x
    x = 15,362,254,731.21/139,961.45
  6. Step 6: Final answer
    x = 109,760.62

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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.