Home / 201,810.02-278,499.75-111,166.40

Finding the Fourth Proportional to 201,810.02, 278,499.75 and 111,166.40

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Solution

The fourth proportional to 201,810.02, 278,499.75 and 111,166.40 is: 153,410.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,810.02 : 278,499.75 = 111,166.40 : x
  2. Step 2: Convert to fraction form
    201,810.02/278,499.75 = 111,166.40/x
  3. Step 3: Cross multiply
    201,810.02x = 278,499.75 × 111,166.40
  4. Step 4: Simplify right side
    201,810.02x = 30,959,814,608.40
  5. Step 5: Solve for x
    x = 30,959,814,608.40/201,810.02
  6. Step 6: Final answer
    x = 153,410.69

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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.