Home / 143,176.80-197,495.64-92,172.72

Finding the Fourth Proportional to 143,176.80, 197,495.64 and 92,172.72

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Solution

The fourth proportional to 143,176.80, 197,495.64 and 92,172.72 is: 127,141.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,176.80 : 197,495.64 = 92,172.72 : x
  2. Step 2: Convert to fraction form
    143,176.80/197,495.64 = 92,172.72/x
  3. Step 3: Cross multiply
    143,176.80x = 197,495.64 × 92,172.72
  4. Step 4: Simplify right side
    143,176.80x = 18,203,710,326.94
  5. Step 5: Solve for x
    x = 18,203,710,326.94/143,176.80
  6. Step 6: Final answer
    x = 127,141.48

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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.