Home / 104,980.40-157,519.20-55,116.80

Finding the Fourth Proportional to 104,980.40, 157,519.20 and 55,116.80

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Solution

The fourth proportional to 104,980.40, 157,519.20 and 55,116.80 is: 82,700.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,980.40 : 157,519.20 = 55,116.80 : x
  2. Step 2: Convert to fraction form
    104,980.40/157,519.20 = 55,116.80/x
  3. Step 3: Cross multiply
    104,980.40x = 157,519.20 × 55,116.80
  4. Step 4: Simplify right side
    104,980.40x = 8,681,954,242.56
  5. Step 5: Solve for x
    x = 8,681,954,242.56/104,980.40
  6. Step 6: Final answer
    x = 82,700.72

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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.