Home / 445,846.10-668,808.02-126,001.31

Finding the Fourth Proportional to 445,846.10, 668,808.02 and 126,001.31

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Solution

The fourth proportional to 445,846.10, 668,808.02 and 126,001.31 is: 189,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,846.10 : 668,808.02 = 126,001.31 : x
  2. Step 2: Convert to fraction form
    445,846.10/668,808.02 = 126,001.31/x
  3. Step 3: Cross multiply
    445,846.10x = 668,808.02 × 126,001.31
  4. Step 4: Simplify right side
    445,846.10x = 84,270,683,629.47
  5. Step 5: Solve for x
    x = 84,270,683,629.47/445,846.10
  6. Step 6: Final answer
    x = 189,012.95

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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.