Home / 139,946.20-209,784.90-46,403.80

Finding the Fourth Proportional to 139,946.20, 209,784.90 and 46,403.80

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Solution

The fourth proportional to 139,946.20, 209,784.90 and 46,403.80 is: 69,561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,946.20 : 209,784.90 = 46,403.80 : x
  2. Step 2: Convert to fraction form
    139,946.20/209,784.90 = 46,403.80/x
  3. Step 3: Cross multiply
    139,946.20x = 209,784.90 × 46,403.80
  4. Step 4: Simplify right side
    139,946.20x = 9,734,816,542.62
  5. Step 5: Solve for x
    x = 9,734,816,542.62/139,946.20
  6. Step 6: Final answer
    x = 69,561.14

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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.