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Finding the Fourth Proportional to 102,618.60, 153,927.90 and 94,745.40

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Solution

The fourth proportional to 102,618.60, 153,927.90 and 94,745.40 is: 142,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,618.60 : 153,927.90 = 94,745.40 : x
  2. Step 2: Convert to fraction form
    102,618.60/153,927.90 = 94,745.40/x
  3. Step 3: Cross multiply
    102,618.60x = 153,927.90 × 94,745.40
  4. Step 4: Simplify right side
    102,618.60x = 14,583,960,456.66
  5. Step 5: Solve for x
    x = 14,583,960,456.66/102,618.60
  6. Step 6: Final answer
    x = 142,118.10

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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.