Home / 159,620.40-239,236.20-70,779.60

Finding the Fourth Proportional to 159,620.40, 239,236.20 and 70,779.60

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Solution

The fourth proportional to 159,620.40, 239,236.20 and 70,779.60 is: 106,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,620.40 : 239,236.20 = 70,779.60 : x
  2. Step 2: Convert to fraction form
    159,620.40/239,236.20 = 70,779.60/x
  3. Step 3: Cross multiply
    159,620.40x = 239,236.20 × 70,779.60
  4. Step 4: Simplify right side
    159,620.40x = 16,933,042,541.52
  5. Step 5: Solve for x
    x = 16,933,042,541.52/159,620.40
  6. Step 6: Final answer
    x = 106,083.20

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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.