Home / 143,089.44-197,454.08-79,427.20

Finding the Fourth Proportional to 143,089.44, 197,454.08 and 79,427.20

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Solution

The fourth proportional to 143,089.44, 197,454.08 and 79,427.20 is: 109,604.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,089.44 : 197,454.08 = 79,427.20 : x
  2. Step 2: Convert to fraction form
    143,089.44/197,454.08 = 79,427.20/x
  3. Step 3: Cross multiply
    143,089.44x = 197,454.08 × 79,427.20
  4. Step 4: Simplify right side
    143,089.44x = 15,683,224,702.98
  5. Step 5: Solve for x
    x = 15,683,224,702.98/143,089.44
  6. Step 6: Final answer
    x = 109,604.35

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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.