Home / 192,623.60-288,643.80-130,221.20

Finding the Fourth Proportional to 192,623.60, 288,643.80 and 130,221.20

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Solution

The fourth proportional to 192,623.60, 288,643.80 and 130,221.20 is: 195,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,623.60 : 288,643.80 = 130,221.20 : x
  2. Step 2: Convert to fraction form
    192,623.60/288,643.80 = 130,221.20/x
  3. Step 3: Cross multiply
    192,623.60x = 288,643.80 × 130,221.20
  4. Step 4: Simplify right side
    192,623.60x = 37,587,542,008.56
  5. Step 5: Solve for x
    x = 37,587,542,008.56/192,623.60
  6. Step 6: Final answer
    x = 195,134.67

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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.