Home / 117,703.29-162,427.05-66,720.70

Finding the Fourth Proportional to 117,703.29, 162,427.05 and 66,720.70

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Solution

The fourth proportional to 117,703.29, 162,427.05 and 66,720.70 is: 92,072.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,703.29 : 162,427.05 = 66,720.70 : x
  2. Step 2: Convert to fraction form
    117,703.29/162,427.05 = 66,720.70/x
  3. Step 3: Cross multiply
    117,703.29x = 162,427.05 × 66,720.70
  4. Step 4: Simplify right side
    117,703.29x = 10,837,246,474.94
  5. Step 5: Solve for x
    x = 10,837,246,474.94/117,703.29
  6. Step 6: Final answer
    x = 92,072.59

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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.