Home / 239,465.20-359,246.40-81,709.60

Finding the Fourth Proportional to 239,465.20, 359,246.40 and 81,709.60

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Solution

The fourth proportional to 239,465.20, 359,246.40 and 81,709.60 is: 122,580.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,465.20 : 359,246.40 = 81,709.60 : x
  2. Step 2: Convert to fraction form
    239,465.20/359,246.40 = 81,709.60/x
  3. Step 3: Cross multiply
    239,465.20x = 359,246.40 × 81,709.60
  4. Step 4: Simplify right side
    239,465.20x = 29,353,879,645.44
  5. Step 5: Solve for x
    x = 29,353,879,645.44/239,465.20
  6. Step 6: Final answer
    x = 122,580.98

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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.