Home / 106,500,128.40-159,624,221.40-55,355,821.20

Finding the Fourth Proportional to 106,500,128.40, 159,624,221.40 and 55,355,821.20

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Solution

The fourth proportional to 106,500,128.40, 159,624,221.40 and 55,355,821.20 is: 82,968,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,500,128.40 : 159,624,221.40 = 55,355,821.20 : x
  2. Step 2: Convert to fraction form
    106,500,128.40/159,624,221.40 = 55,355,821.20/x
  3. Step 3: Cross multiply
    106,500,128.40x = 159,624,221.40 × 55,355,821.20
  4. Step 4: Simplify right side
    106,500,128.40x = 8,836,129,859,007,614
  5. Step 5: Solve for x
    x = 8,836,129,859,007,614/106,500,128.40
  6. Step 6: Final answer
    x = 82,968,255.45

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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.