Home / 170,650.14-255,775.86-128,394.45

Finding the Fourth Proportional to 170,650.14, 255,775.86 and 128,394.45

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Solution

The fourth proportional to 170,650.14, 255,775.86 and 128,394.45 is: 192,441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,650.14 : 255,775.86 = 128,394.45 : x
  2. Step 2: Convert to fraction form
    170,650.14/255,775.86 = 128,394.45/x
  3. Step 3: Cross multiply
    170,650.14x = 255,775.86 × 128,394.45
  4. Step 4: Simplify right side
    170,650.14x = 32,840,200,867.98
  5. Step 5: Solve for x
    x = 32,840,200,867.98/170,650.14
  6. Step 6: Final answer
    x = 192,441.69

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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.