Home / 139,711.36-209,605.68-46,282.72

Finding the Fourth Proportional to 139,711.36, 209,605.68 and 46,282.72

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Solution

The fourth proportional to 139,711.36, 209,605.68 and 46,282.72 is: 69,436.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,711.36 : 209,605.68 = 46,282.72 : x
  2. Step 2: Convert to fraction form
    139,711.36/209,605.68 = 46,282.72/x
  3. Step 3: Cross multiply
    139,711.36x = 209,605.68 × 46,282.72
  4. Step 4: Simplify right side
    139,711.36x = 9,701,120,997.85
  5. Step 5: Solve for x
    x = 9,701,120,997.85/139,711.36
  6. Step 6: Final answer
    x = 69,436.88

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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.