Home / 139,667.19-192,744.75-76,009.02

Finding the Fourth Proportional to 139,667.19, 192,744.75 and 76,009.02

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Solution

The fourth proportional to 139,667.19, 192,744.75 and 76,009.02 is: 104,894.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,667.19 : 192,744.75 = 76,009.02 : x
  2. Step 2: Convert to fraction form
    139,667.19/192,744.75 = 76,009.02/x
  3. Step 3: Cross multiply
    139,667.19x = 192,744.75 × 76,009.02
  4. Step 4: Simplify right side
    139,667.19x = 14,650,339,557.65
  5. Step 5: Solve for x
    x = 14,650,339,557.65/139,667.19
  6. Step 6: Final answer
    x = 104,894.64

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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.