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Finding the Fourth Proportional to 68,130, 102,194.28 and 26,606.16

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Solution

The fourth proportional to 68,130, 102,194.28 and 26,606.16 is: 39,908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,130 : 102,194.28 = 26,606.16 : x
  2. Step 2: Convert to fraction form
    68,130/102,194.28 = 26,606.16/x
  3. Step 3: Cross multiply
    68,130x = 102,194.28 × 26,606.16
  4. Step 4: Simplify right side
    68,130x = 2,718,997,364.76
  5. Step 5: Solve for x
    x = 2,718,997,364.76/68,130
  6. Step 6: Final answer
    x = 39,908.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.