Home / 139,723.17-192,844.55-79,299.47

Finding the Fourth Proportional to 139,723.17, 192,844.55 and 79,299.47

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Solution

The fourth proportional to 139,723.17, 192,844.55 and 79,299.47 is: 109,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,723.17 : 192,844.55 = 79,299.47 : x
  2. Step 2: Convert to fraction form
    139,723.17/192,844.55 = 79,299.47/x
  3. Step 3: Cross multiply
    139,723.17x = 192,844.55 × 79,299.47
  4. Step 4: Simplify right side
    139,723.17x = 15,292,470,693.00
  5. Step 5: Solve for x
    x = 15,292,470,693.00/139,723.17
  6. Step 6: Final answer
    x = 109,448.35

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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.