Home / 126,520.80-189,782.46-51,620.94

Finding the Fourth Proportional to 126,520.80, 189,782.46 and 51,620.94

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Solution

The fourth proportional to 126,520.80, 189,782.46 and 51,620.94 is: 77,431.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,520.80 : 189,782.46 = 51,620.94 : x
  2. Step 2: Convert to fraction form
    126,520.80/189,782.46 = 51,620.94/x
  3. Step 3: Cross multiply
    126,520.80x = 189,782.46 × 51,620.94
  4. Step 4: Simplify right side
    126,520.80x = 9,796,748,980.71
  5. Step 5: Solve for x
    x = 9,796,748,980.71/126,520.80
  6. Step 6: Final answer
    x = 77,431.92

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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.