Home / 127,818.40-191,727.60-74,455.60

Finding the Fourth Proportional to 127,818.40, 191,727.60 and 74,455.60

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Solution

The fourth proportional to 127,818.40, 191,727.60 and 74,455.60 is: 111,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,818.40 : 191,727.60 = 74,455.60 : x
  2. Step 2: Convert to fraction form
    127,818.40/191,727.60 = 74,455.60/x
  3. Step 3: Cross multiply
    127,818.40x = 191,727.60 × 74,455.60
  4. Step 4: Simplify right side
    127,818.40x = 14,275,193,494.56
  5. Step 5: Solve for x
    x = 14,275,193,494.56/127,818.40
  6. Step 6: Final answer
    x = 111,683.40

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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.