Home / 139,701.07-209,559.35-39,853.58

Finding the Fourth Proportional to 139,701.07, 209,559.35 and 39,853.58

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Solution

The fourth proportional to 139,701.07, 209,559.35 and 39,853.58 is: 59,782.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,701.07 : 209,559.35 = 39,853.58 : x
  2. Step 2: Convert to fraction form
    139,701.07/209,559.35 = 39,853.58/x
  3. Step 3: Cross multiply
    139,701.07x = 209,559.35 × 39,853.58
  4. Step 4: Simplify right side
    139,701.07x = 8,351,690,319.97
  5. Step 5: Solve for x
    x = 8,351,690,319.97/139,701.07
  6. Step 6: Final answer
    x = 59,782.58

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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.