Home / 202,075.23-278,879.72-111,439.47

Finding the Fourth Proportional to 202,075.23, 278,879.72 and 111,439.47

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Solution

The fourth proportional to 202,075.23, 278,879.72 and 111,439.47 is: 153,795.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,075.23 : 278,879.72 = 111,439.47 : x
  2. Step 2: Convert to fraction form
    202,075.23/278,879.72 = 111,439.47/x
  3. Step 3: Cross multiply
    202,075.23x = 278,879.72 × 111,439.47
  4. Step 4: Simplify right side
    202,075.23x = 31,078,207,633.35
  5. Step 5: Solve for x
    x = 31,078,207,633.35/202,075.23
  6. Step 6: Final answer
    x = 153,795.24

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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.