Home / 142,767.72-197,016.60-79,106.04

Finding the Fourth Proportional to 142,767.72, 197,016.60 and 79,106.04

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Solution

The fourth proportional to 142,767.72, 197,016.60 and 79,106.04 is: 109,164.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,767.72 : 197,016.60 = 79,106.04 : x
  2. Step 2: Convert to fraction form
    142,767.72/197,016.60 = 79,106.04/x
  3. Step 3: Cross multiply
    142,767.72x = 197,016.60 × 79,106.04
  4. Step 4: Simplify right side
    142,767.72x = 15,585,203,040.26
  5. Step 5: Solve for x
    x = 15,585,203,040.26/142,767.72
  6. Step 6: Final answer
    x = 109,164.75

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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.