Home / 170,659.02-256,145.77-86,478.83

Finding the Fourth Proportional to 170,659.02, 256,145.77 and 86,478.83

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Solution

The fourth proportional to 170,659.02, 256,145.77 and 86,478.83 is: 129,797.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,659.02 : 256,145.77 = 86,478.83 : x
  2. Step 2: Convert to fraction form
    170,659.02/256,145.77 = 86,478.83/x
  3. Step 3: Cross multiply
    170,659.02x = 256,145.77 × 86,478.83
  4. Step 4: Simplify right side
    170,659.02x = 22,151,184,785.93
  5. Step 5: Solve for x
    x = 22,151,184,785.93/170,659.02
  6. Step 6: Final answer
    x = 129,797.91

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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.