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Finding the Fourth Proportional to 124,526, 171,845.92 and 79,814

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Solution

The fourth proportional to 124,526, 171,845.92 and 79,814 is: 110,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,526 : 171,845.92 = 79,814 : x
  2. Step 2: Convert to fraction form
    124,526/171,845.92 = 79,814/x
  3. Step 3: Cross multiply
    124,526x = 171,845.92 × 79,814
  4. Step 4: Simplify right side
    124,526x = 13,715,710,258.88
  5. Step 5: Solve for x
    x = 13,715,710,258.88/124,526
  6. Step 6: Final answer
    x = 110,143.35

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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.