Home / 145,772.21-218,689.00-82,622.59

Finding the Fourth Proportional to 145,772.21, 218,689.00 and 82,622.59

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Solution

The fourth proportional to 145,772.21, 218,689.00 and 82,622.59 is: 123,951.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,772.21 : 218,689.00 = 82,622.59 : x
  2. Step 2: Convert to fraction form
    145,772.21/218,689.00 = 82,622.59/x
  3. Step 3: Cross multiply
    145,772.21x = 218,689.00 × 82,622.59
  4. Step 4: Simplify right side
    145,772.21x = 18,068,650,831.23
  5. Step 5: Solve for x
    x = 18,068,650,831.23/145,772.21
  6. Step 6: Final answer
    x = 123,951.27

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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.