Home / 445,361.02-668,031.81-108,403.45

Finding the Fourth Proportional to 445,361.02, 668,031.81 and 108,403.45

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Solution

The fourth proportional to 445,361.02, 668,031.81 and 108,403.45 is: 162,602.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,361.02 : 668,031.81 = 108,403.45 : x
  2. Step 2: Convert to fraction form
    445,361.02/668,031.81 = 108,403.45/x
  3. Step 3: Cross multiply
    445,361.02x = 668,031.81 × 108,403.45
  4. Step 4: Simplify right side
    445,361.02x = 72,416,950,837.15
  5. Step 5: Solve for x
    x = 72,416,950,837.15/445,361.02
  6. Step 6: Final answer
    x = 162,602.81

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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.