Home / 126,528.40-189,786.08-37,782.64

Finding the Fourth Proportional to 126,528.40, 189,786.08 and 37,782.64

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Solution

The fourth proportional to 126,528.40, 189,786.08 and 37,782.64 is: 56,672.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,528.40 : 189,786.08 = 37,782.64 : x
  2. Step 2: Convert to fraction form
    126,528.40/189,786.08 = 37,782.64/x
  3. Step 3: Cross multiply
    126,528.40x = 189,786.08 × 37,782.64
  4. Step 4: Simplify right side
    126,528.40x = 7,170,619,137.65
  5. Step 5: Solve for x
    x = 7,170,619,137.65/126,528.40
  6. Step 6: Final answer
    x = 56,672.01

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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.