Home / 117,927.65-162,743.65-66,939.37

Finding the Fourth Proportional to 117,927.65, 162,743.65 and 66,939.37

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Solution

The fourth proportional to 117,927.65, 162,743.65 and 66,939.37 is: 92,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,927.65 : 162,743.65 = 66,939.37 : x
  2. Step 2: Convert to fraction form
    117,927.65/162,743.65 = 66,939.37/x
  3. Step 3: Cross multiply
    117,927.65x = 162,743.65 × 66,939.37
  4. Step 4: Simplify right side
    117,927.65x = 10,893,956,828.29
  5. Step 5: Solve for x
    x = 10,893,956,828.29/117,927.65
  6. Step 6: Final answer
    x = 92,378.31

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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.