Home / 112,942.05-169,623.67-99,437.98

Finding the Fourth Proportional to 112,942.05, 169,623.67 and 99,437.98

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Solution

The fourth proportional to 112,942.05, 169,623.67 and 99,437.98 is: 149,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,942.05 : 169,623.67 = 99,437.98 : x
  2. Step 2: Convert to fraction form
    112,942.05/169,623.67 = 99,437.98/x
  3. Step 3: Cross multiply
    112,942.05x = 169,623.67 × 99,437.98
  4. Step 4: Simplify right side
    112,942.05x = 16,867,034,936.82
  5. Step 5: Solve for x
    x = 16,867,034,936.82/112,942.05
  6. Step 6: Final answer
    x = 149,342.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.