Home / 136,667.03-188,605.19-79,302.02

Finding the Fourth Proportional to 136,667.03, 188,605.19 and 79,302.02

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Solution

The fourth proportional to 136,667.03, 188,605.19 and 79,302.02 is: 109,439.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,667.03 : 188,605.19 = 79,302.02 : x
  2. Step 2: Convert to fraction form
    136,667.03/188,605.19 = 79,302.02/x
  3. Step 3: Cross multiply
    136,667.03x = 188,605.19 × 79,302.02
  4. Step 4: Simplify right side
    136,667.03x = 14,956,772,152.97
  5. Step 5: Solve for x
    x = 14,956,772,152.97/136,667.03
  6. Step 6: Final answer
    x = 109,439.51

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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.