Home / 143,093.18-197,458.65-79,425.96

Finding the Fourth Proportional to 143,093.18, 197,458.65 and 79,425.96

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Solution

The fourth proportional to 143,093.18, 197,458.65 and 79,425.96 is: 109,602.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,093.18 : 197,458.65 = 79,425.96 : x
  2. Step 2: Convert to fraction form
    143,093.18/197,458.65 = 79,425.96/x
  3. Step 3: Cross multiply
    143,093.18x = 197,458.65 × 79,425.96
  4. Step 4: Simplify right side
    143,093.18x = 15,683,342,836.55
  5. Step 5: Solve for x
    x = 15,683,342,836.55/143,093.18
  6. Step 6: Final answer
    x = 109,602.31

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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.