Home / 145,838.20-218,757.30-82,852.60

Finding the Fourth Proportional to 145,838.20, 218,757.30 and 82,852.60

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Solution

The fourth proportional to 145,838.20, 218,757.30 and 82,852.60 is: 124,278.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,838.20 : 218,757.30 = 82,852.60 : x
  2. Step 2: Convert to fraction form
    145,838.20/218,757.30 = 82,852.60/x
  3. Step 3: Cross multiply
    145,838.20x = 218,757.30 × 82,852.60
  4. Step 4: Simplify right side
    145,838.20x = 18,124,611,073.98
  5. Step 5: Solve for x
    x = 18,124,611,073.98/145,838.20
  6. Step 6: Final answer
    x = 124,278.90

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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.