Home / 144,313.65-199,158.99-80,651.45

Finding the Fourth Proportional to 144,313.65, 199,158.99 and 80,651.45

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Solution

The fourth proportional to 144,313.65, 199,158.99 and 80,651.45 is: 111,302.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,313.65 : 199,158.99 = 80,651.45 : x
  2. Step 2: Convert to fraction form
    144,313.65/199,158.99 = 80,651.45/x
  3. Step 3: Cross multiply
    144,313.65x = 199,158.99 × 80,651.45
  4. Step 4: Simplify right side
    144,313.65x = 16,062,460,025.80
  5. Step 5: Solve for x
    x = 16,062,460,025.80/144,313.65
  6. Step 6: Final answer
    x = 111,302.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.