Home / 139,535.08-209,302.62-39,705.64

Finding the Fourth Proportional to 139,535.08, 209,302.62 and 39,705.64

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Solution

The fourth proportional to 139,535.08, 209,302.62 and 39,705.64 is: 59,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,535.08 : 209,302.62 = 39,705.64 : x
  2. Step 2: Convert to fraction form
    139,535.08/209,302.62 = 39,705.64/x
  3. Step 3: Cross multiply
    139,535.08x = 209,302.62 × 39,705.64
  4. Step 4: Simplify right side
    139,535.08x = 8,310,494,480.78
  5. Step 5: Solve for x
    x = 8,310,494,480.78/139,535.08
  6. Step 6: Final answer
    x = 59,558.46

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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.