Home / 143,146.50-197,548.26-79,484.25

Finding the Fourth Proportional to 143,146.50, 197,548.26 and 79,484.25

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Solution

The fourth proportional to 143,146.50, 197,548.26 and 79,484.25 is: 109,691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,146.50 : 197,548.26 = 79,484.25 : x
  2. Step 2: Convert to fraction form
    143,146.50/197,548.26 = 79,484.25/x
  3. Step 3: Cross multiply
    143,146.50x = 197,548.26 × 79,484.25
  4. Step 4: Simplify right side
    143,146.50x = 15,701,975,284.91
  5. Step 5: Solve for x
    x = 15,701,975,284.91/143,146.50
  6. Step 6: Final answer
    x = 109,691.65

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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.