Home / 481,007.10-721,533.91-126,021.46

Finding the Fourth Proportional to 481,007.10, 721,533.91 and 126,021.46

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Solution

The fourth proportional to 481,007.10, 721,533.91 and 126,021.46 is: 189,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,007.10 : 721,533.91 = 126,021.46 : x
  2. Step 2: Convert to fraction form
    481,007.10/721,533.91 = 126,021.46/x
  3. Step 3: Cross multiply
    481,007.10x = 721,533.91 × 126,021.46
  4. Step 4: Simplify right side
    481,007.10x = 90,928,756,777.71
  5. Step 5: Solve for x
    x = 90,928,756,777.71/481,007.10
  6. Step 6: Final answer
    x = 189,038.28

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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.