Home / 131,930.40-182,064.06-77,471.94

Finding the Fourth Proportional to 131,930.40, 182,064.06 and 77,471.94

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Solution

The fourth proportional to 131,930.40, 182,064.06 and 77,471.94 is: 106,911.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,930.40 : 182,064.06 = 77,471.94 : x
  2. Step 2: Convert to fraction form
    131,930.40/182,064.06 = 77,471.94/x
  3. Step 3: Cross multiply
    131,930.40x = 182,064.06 × 77,471.94
  4. Step 4: Simplify right side
    131,930.40x = 14,104,855,932.48
  5. Step 5: Solve for x
    x = 14,104,855,932.48/131,930.40
  6. Step 6: Final answer
    x = 106,911.34

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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.