Home / 117,038.12-161,511.44-63,321.98

Finding the Fourth Proportional to 117,038.12, 161,511.44 and 63,321.98

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Solution

The fourth proportional to 117,038.12, 161,511.44 and 63,321.98 is: 87,383.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,038.12 : 161,511.44 = 63,321.98 : x
  2. Step 2: Convert to fraction form
    117,038.12/161,511.44 = 63,321.98/x
  3. Step 3: Cross multiply
    117,038.12x = 161,511.44 × 63,321.98
  4. Step 4: Simplify right side
    117,038.12x = 10,227,223,049.28
  5. Step 5: Solve for x
    x = 10,227,223,049.28/117,038.12
  6. Step 6: Final answer
    x = 87,383.70

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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.