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Finding the Fourth Proportional to 102,124, 153,185.04 and 55,672

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Solution

The fourth proportional to 102,124, 153,185.04 and 55,672 is: 83,507.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,124 : 153,185.04 = 55,672 : x
  2. Step 2: Convert to fraction form
    102,124/153,185.04 = 55,672/x
  3. Step 3: Cross multiply
    102,124x = 153,185.04 × 55,672
  4. Step 4: Simplify right side
    102,124x = 8,528,117,546.88
  5. Step 5: Solve for x
    x = 8,528,117,546.88/102,124
  6. Step 6: Final answer
    x = 83,507.48

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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.