Home / 136,429.72-188,277.75-79,069.25

Finding the Fourth Proportional to 136,429.72, 188,277.75 and 79,069.25

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Solution

The fourth proportional to 136,429.72, 188,277.75 and 79,069.25 is: 109,118.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,429.72 : 188,277.75 = 79,069.25 : x
  2. Step 2: Convert to fraction form
    136,429.72/188,277.75 = 79,069.25/x
  3. Step 3: Cross multiply
    136,429.72x = 188,277.75 × 79,069.25
  4. Step 4: Simplify right side
    136,429.72x = 14,886,980,954.88
  5. Step 5: Solve for x
    x = 14,886,980,954.88/136,429.72
  6. Step 6: Final answer
    x = 109,118.32

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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.