Home / 142,794.44-197,051.36-79,138.16

Finding the Fourth Proportional to 142,794.44, 197,051.36 and 79,138.16

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Solution

The fourth proportional to 142,794.44, 197,051.36 and 79,138.16 is: 109,207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,794.44 : 197,051.36 = 79,138.16 : x
  2. Step 2: Convert to fraction form
    142,794.44/197,051.36 = 79,138.16/x
  3. Step 3: Cross multiply
    142,794.44x = 197,051.36 × 79,138.16
  4. Step 4: Simplify right side
    142,794.44x = 15,594,282,055.90
  5. Step 5: Solve for x
    x = 15,594,282,055.90/142,794.44
  6. Step 6: Final answer
    x = 109,207.91

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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.