Home / 185,930.40-278,895.60-105,886.20

Finding the Fourth Proportional to 185,930.40, 278,895.60 and 105,886.20

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Solution

The fourth proportional to 185,930.40, 278,895.60 and 105,886.20 is: 158,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,930.40 : 278,895.60 = 105,886.20 : x
  2. Step 2: Convert to fraction form
    185,930.40/278,895.60 = 105,886.20/x
  3. Step 3: Cross multiply
    185,930.40x = 278,895.60 × 105,886.20
  4. Step 4: Simplify right side
    185,930.40x = 29,531,195,280.72
  5. Step 5: Solve for x
    x = 29,531,195,280.72/185,930.40
  6. Step 6: Final answer
    x = 158,829.30

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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.