Home / 170,857.03-256,139.73-120,779.59

Finding the Fourth Proportional to 170,857.03, 256,139.73 and 120,779.59

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Solution

The fourth proportional to 170,857.03, 256,139.73 and 120,779.59 is: 181,066.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,857.03 : 256,139.73 = 120,779.59 : x
  2. Step 2: Convert to fraction form
    170,857.03/256,139.73 = 120,779.59/x
  3. Step 3: Cross multiply
    170,857.03x = 256,139.73 × 120,779.59
  4. Step 4: Simplify right side
    170,857.03x = 30,936,451,572.11
  5. Step 5: Solve for x
    x = 30,936,451,572.11/170,857.03
  6. Step 6: Final answer
    x = 181,066.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.