Home / 117,330.48-161,855.82-77,038.38

Finding the Fourth Proportional to 117,330.48, 161,855.82 and 77,038.38

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Solution

The fourth proportional to 117,330.48, 161,855.82 and 77,038.38 is: 106,273.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,330.48 : 161,855.82 = 77,038.38 : x
  2. Step 2: Convert to fraction form
    117,330.48/161,855.82 = 77,038.38/x
  3. Step 3: Cross multiply
    117,330.48x = 161,855.82 × 77,038.38
  4. Step 4: Simplify right side
    117,330.48x = 12,469,110,166.37
  5. Step 5: Solve for x
    x = 12,469,110,166.37/117,330.48
  6. Step 6: Final answer
    x = 106,273.41

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1.5x scale

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.