Home / 105,907,195.80-145,814,074.38-90,374,946.84

Finding the Fourth Proportional to 105,907,195.80, 145,814,074.38 and 90,374,946.84

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Solution

The fourth proportional to 105,907,195.80, 145,814,074.38 and 90,374,946.84 is: 124,429,120.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,907,195.80 : 145,814,074.38 = 90,374,946.84 : x
  2. Step 2: Convert to fraction form
    105,907,195.80/145,814,074.38 = 90,374,946.84/x
  3. Step 3: Cross multiply
    105,907,195.80x = 145,814,074.38 × 90,374,946.84
  4. Step 4: Simplify right side
    105,907,195.80x = 13,177,939,220,616,306
  5. Step 5: Solve for x
    x = 13,177,939,220,616,306/105,907,195.80
  6. Step 6: Final answer
    x = 124,429,120.43

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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.