Home / 170,823.37-256,391.31-86,641.66

Finding the Fourth Proportional to 170,823.37, 256,391.31 and 86,641.66

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Solution

The fourth proportional to 170,823.37, 256,391.31 and 86,641.66 is: 130,041.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,823.37 : 256,391.31 = 86,641.66 : x
  2. Step 2: Convert to fraction form
    170,823.37/256,391.31 = 86,641.66/x
  3. Step 3: Cross multiply
    170,823.37x = 256,391.31 × 86,641.66
  4. Step 4: Simplify right side
    170,823.37x = 22,214,168,707.97
  5. Step 5: Solve for x
    x = 22,214,168,707.97/170,823.37
  6. Step 6: Final answer
    x = 130,041.74

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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.