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Finding the Fourth Proportional to 102,703.20, 154,054.80 and 62,786.40

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Solution

The fourth proportional to 102,703.20, 154,054.80 and 62,786.40 is: 94,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,703.20 : 154,054.80 = 62,786.40 : x
  2. Step 2: Convert to fraction form
    102,703.20/154,054.80 = 62,786.40/x
  3. Step 3: Cross multiply
    102,703.20x = 154,054.80 × 62,786.40
  4. Step 4: Simplify right side
    102,703.20x = 9,672,546,294.72
  5. Step 5: Solve for x
    x = 9,672,546,294.72/102,703.20
  6. Step 6: Final answer
    x = 94,179.60

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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.