Home / 445,688.64-668,467.20-130,060.80

Finding the Fourth Proportional to 445,688.64, 668,467.20 and 130,060.80

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Solution

The fourth proportional to 445,688.64, 668,467.20 and 130,060.80 is: 195,072.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,688.64 : 668,467.20 = 130,060.80 : x
  2. Step 2: Convert to fraction form
    445,688.64/668,467.20 = 130,060.80/x
  3. Step 3: Cross multiply
    445,688.64x = 668,467.20 × 130,060.80
  4. Step 4: Simplify right side
    445,688.64x = 86,941,378,805.76
  5. Step 5: Solve for x
    x = 86,941,378,805.76/445,688.64
  6. Step 6: Final answer
    x = 195,072.01

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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.