Home / 139,265.24-192,186.42-75,603.32

Finding the Fourth Proportional to 139,265.24, 192,186.42 and 75,603.32

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Solution

The fourth proportional to 139,265.24, 192,186.42 and 75,603.32 is: 104,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,265.24 : 192,186.42 = 75,603.32 : x
  2. Step 2: Convert to fraction form
    139,265.24/192,186.42 = 75,603.32/x
  3. Step 3: Cross multiply
    139,265.24x = 192,186.42 × 75,603.32
  4. Step 4: Simplify right side
    139,265.24x = 14,529,931,410.91
  5. Step 5: Solve for x
    x = 14,529,931,410.91/139,265.24
  6. Step 6: Final answer
    x = 104,332.79

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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.