Home / 129,004.80-193,359.24-54,111.12

Finding the Fourth Proportional to 129,004.80, 193,359.24 and 54,111.12

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Solution

The fourth proportional to 129,004.80, 193,359.24 and 54,111.12 is: 81,104.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,004.80 : 193,359.24 = 54,111.12 : x
  2. Step 2: Convert to fraction form
    129,004.80/193,359.24 = 54,111.12/x
  3. Step 3: Cross multiply
    129,004.80x = 193,359.24 × 54,111.12
  4. Step 4: Simplify right side
    129,004.80x = 10,462,885,038.75
  5. Step 5: Solve for x
    x = 10,462,885,038.75/129,004.80
  6. Step 6: Final answer
    x = 81,104.62

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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.