Home / 117,702.29-162,425.67-66,719.70

Finding the Fourth Proportional to 117,702.29, 162,425.67 and 66,719.70

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Solution

The fourth proportional to 117,702.29, 162,425.67 and 66,719.70 is: 92,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,702.29 : 162,425.67 = 66,719.70 : x
  2. Step 2: Convert to fraction form
    117,702.29/162,425.67 = 66,719.70/x
  3. Step 3: Cross multiply
    117,702.29x = 162,425.67 × 66,719.70
  4. Step 4: Simplify right side
    117,702.29x = 10,836,991,974.70
  5. Step 5: Solve for x
    x = 10,836,991,974.70/117,702.29
  6. Step 6: Final answer
    x = 92,071.21

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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.