Home / 154,238.52-212,847.96-86,255.60

Finding the Fourth Proportional to 154,238.52, 212,847.96 and 86,255.60

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Solution

The fourth proportional to 154,238.52, 212,847.96 and 86,255.60 is: 119,032.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,238.52 : 212,847.96 = 86,255.60 : x
  2. Step 2: Convert to fraction form
    154,238.52/212,847.96 = 86,255.60/x
  3. Step 3: Cross multiply
    154,238.52x = 212,847.96 × 86,255.60
  4. Step 4: Simplify right side
    154,238.52x = 18,359,328,498.58
  5. Step 5: Solve for x
    x = 18,359,328,498.58/154,238.52
  6. Step 6: Final answer
    x = 119,032.06

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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.