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Finding the Fourth Proportional to 137,871.08, 206,515.99 and 63,054.21

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Solution

The fourth proportional to 137,871.08, 206,515.99 and 63,054.21 is: 94,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,871.08 : 206,515.99 = 63,054.21 : x
  2. Step 2: Convert to fraction form
    137,871.08/206,515.99 = 63,054.21/x
  3. Step 3: Cross multiply
    137,871.08x = 206,515.99 × 63,054.21
  4. Step 4: Simplify right side
    137,871.08x = 13,021,702,601.82
  5. Step 5: Solve for x
    x = 13,021,702,601.82/137,871.08
  6. Step 6: Final answer
    x = 94,448.40

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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.