Home / 139,569.08-192,603.21-75,905.42

Finding the Fourth Proportional to 139,569.08, 192,603.21 and 75,905.42

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Solution

The fourth proportional to 139,569.08, 192,603.21 and 75,905.42 is: 104,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,569.08 : 192,603.21 = 75,905.42 : x
  2. Step 2: Convert to fraction form
    139,569.08/192,603.21 = 75,905.42/x
  3. Step 3: Cross multiply
    139,569.08x = 192,603.21 × 75,905.42
  4. Step 4: Simplify right side
    139,569.08x = 14,619,627,548.40
  5. Step 5: Solve for x
    x = 14,619,627,548.40/139,569.08
  6. Step 6: Final answer
    x = 104,748.33

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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.