Home / 103,839,740.96-143,342,965.31-64,700,855.37

Finding the Fourth Proportional to 103,839,740.96, 143,342,965.31 and 64,700,855.37

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Solution

The fourth proportional to 103,839,740.96, 143,342,965.31 and 64,700,855.37 is: 89,314,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,839,740.96 : 143,342,965.31 = 64,700,855.37 : x
  2. Step 2: Convert to fraction form
    103,839,740.96/143,342,965.31 = 64,700,855.37/x
  3. Step 3: Cross multiply
    103,839,740.96x = 143,342,965.31 × 64,700,855.37
  4. Step 4: Simplify right side
    103,839,740.96x = 9,274,412,466,505,734
  5. Step 5: Solve for x
    x = 9,274,412,466,505,734/103,839,740.96
  6. Step 6: Final answer
    x = 89,314,672.60

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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.