Home / 445,942.02-668,955.96-126,104.34

Finding the Fourth Proportional to 445,942.02, 668,955.96 and 126,104.34

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Solution

The fourth proportional to 445,942.02, 668,955.96 and 126,104.34 is: 189,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,942.02 : 668,955.96 = 126,104.34 : x
  2. Step 2: Convert to fraction form
    445,942.02/668,955.96 = 126,104.34/x
  3. Step 3: Cross multiply
    445,942.02x = 668,955.96 × 126,104.34
  4. Step 4: Simplify right side
    445,942.02x = 84,358,249,824.87
  5. Step 5: Solve for x
    x = 84,358,249,824.87/445,942.02
  6. Step 6: Final answer
    x = 189,168.65

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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.