Home / 105,907,198.30-145,814,077.83-90,374,949.34

Finding the Fourth Proportional to 105,907,198.30, 145,814,077.83 and 90,374,949.34

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Solution

The fourth proportional to 105,907,198.30, 145,814,077.83 and 90,374,949.34 is: 124,429,123.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,907,198.30 : 145,814,077.83 = 90,374,949.34 : x
  2. Step 2: Convert to fraction form
    105,907,198.30/145,814,077.83 = 90,374,949.34/x
  3. Step 3: Cross multiply
    105,907,198.30x = 145,814,077.83 × 90,374,949.34
  4. Step 4: Simplify right side
    105,907,198.30x = 13,177,939,896,945,068
  5. Step 5: Solve for x
    x = 13,177,939,896,945,068/105,907,198.30
  6. Step 6: Final answer
    x = 124,429,123.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.