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Finding the Fourth Proportional to 136,218.90, 204,328.35 and 62,490.90

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Solution

The fourth proportional to 136,218.90, 204,328.35 and 62,490.90 is: 93,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,218.90 : 204,328.35 = 62,490.90 : x
  2. Step 2: Convert to fraction form
    136,218.90/204,328.35 = 62,490.90/x
  3. Step 3: Cross multiply
    136,218.90x = 204,328.35 × 62,490.90
  4. Step 4: Simplify right side
    136,218.90x = 12,768,662,487.02
  5. Step 5: Solve for x
    x = 12,768,662,487.02/136,218.90
  6. Step 6: Final answer
    x = 93,736.35

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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.