Home / 168,075,087.72-231,943,621.50-90,812,751.72

Finding the Fourth Proportional to 168,075,087.72, 231,943,621.50 and 90,812,751.72

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Solution

The fourth proportional to 168,075,087.72, 231,943,621.50 and 90,812,751.72 is: 125,321,597.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,075,087.72 : 231,943,621.50 = 90,812,751.72 : x
  2. Step 2: Convert to fraction form
    168,075,087.72/231,943,621.50 = 90,812,751.72/x
  3. Step 3: Cross multiply
    168,075,087.72x = 231,943,621.50 × 90,812,751.72
  4. Step 4: Simplify right side
    168,075,087.72x = 21,063,438,512,317,152
  5. Step 5: Solve for x
    x = 21,063,438,512,317,152/168,075,087.72
  6. Step 6: Final answer
    x = 125,321,597.61

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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.