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Finding the Fourth Proportional to 139,506.23, 209,227.82 and 39,664.24

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Solution

The fourth proportional to 139,506.23, 209,227.82 and 39,664.24 is: 59,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,506.23 : 209,227.82 = 39,664.24 : x
  2. Step 2: Convert to fraction form
    139,506.23/209,227.82 = 39,664.24/x
  3. Step 3: Cross multiply
    139,506.23x = 209,227.82 × 39,664.24
  4. Step 4: Simplify right side
    139,506.23x = 8,298,862,467.16
  5. Step 5: Solve for x
    x = 8,298,862,467.16/139,506.23
  6. Step 6: Final answer
    x = 59,487.40

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1.5x scale

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.