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Finding the Fourth Proportional to 124,556, 171,887.32 and 79,844

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Solution

The fourth proportional to 124,556, 171,887.32 and 79,844 is: 110,184.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,556 : 171,887.32 = 79,844 : x
  2. Step 2: Convert to fraction form
    124,556/171,887.32 = 79,844/x
  3. Step 3: Cross multiply
    124,556x = 171,887.32 × 79,844
  4. Step 4: Simplify right side
    124,556x = 13,724,171,178.08
  5. Step 5: Solve for x
    x = 13,724,171,178.08/124,556
  6. Step 6: Final answer
    x = 110,184.75

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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.