Home / 202,075.48-278,858.06-111,431.40

Finding the Fourth Proportional to 202,075.48, 278,858.06 and 111,431.40

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Solution

The fourth proportional to 202,075.48, 278,858.06 and 111,431.40 is: 153,771.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,075.48 : 278,858.06 = 111,431.40 : x
  2. Step 2: Convert to fraction form
    202,075.48/278,858.06 = 111,431.40/x
  3. Step 3: Cross multiply
    202,075.48x = 278,858.06 × 111,431.40
  4. Step 4: Simplify right side
    202,075.48x = 31,073,544,027.08
  5. Step 5: Solve for x
    x = 31,073,544,027.08/202,075.48
  6. Step 6: Final answer
    x = 153,771.97

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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.