Home / 445,586.20-668,532.30-130,089.40

Finding the Fourth Proportional to 445,586.20, 668,532.30 and 130,089.40

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Solution

The fourth proportional to 445,586.20, 668,532.30 and 130,089.40 is: 195,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,586.20 : 668,532.30 = 130,089.40 : x
  2. Step 2: Convert to fraction form
    445,586.20/668,532.30 = 130,089.40/x
  3. Step 3: Cross multiply
    445,586.20x = 668,532.30 × 130,089.40
  4. Step 4: Simplify right side
    445,586.20x = 86,968,965,787.62
  5. Step 5: Solve for x
    x = 86,968,965,787.62/445,586.20
  6. Step 6: Final answer
    x = 195,178.77

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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.