Home / 143,094.90-197,461.09-79,427.69

Finding the Fourth Proportional to 143,094.90, 197,461.09 and 79,427.69

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Solution

The fourth proportional to 143,094.90, 197,461.09 and 79,427.69 is: 109,604.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,094.90 : 197,461.09 = 79,427.69 : x
  2. Step 2: Convert to fraction form
    143,094.90/197,461.09 = 79,427.69/x
  3. Step 3: Cross multiply
    143,094.90x = 197,461.09 × 79,427.69
  4. Step 4: Simplify right side
    143,094.90x = 15,683,878,243.58
  5. Step 5: Solve for x
    x = 15,683,878,243.58/143,094.90
  6. Step 6: Final answer
    x = 109,604.73

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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.