Home / 202,059.27-278,839.58-111,423.20

Finding the Fourth Proportional to 202,059.27, 278,839.58 and 111,423.20

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Solution

The fourth proportional to 202,059.27, 278,839.58 and 111,423.20 is: 153,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,059.27 : 278,839.58 = 111,423.20 : x
  2. Step 2: Convert to fraction form
    202,059.27/278,839.58 = 111,423.20/x
  3. Step 3: Cross multiply
    202,059.27x = 278,839.58 × 111,423.20
  4. Step 4: Simplify right side
    202,059.27x = 31,069,196,338.94
  5. Step 5: Solve for x
    x = 31,069,196,338.94/202,059.27
  6. Step 6: Final answer
    x = 153,762.79

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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.