Home / 103,839,736.46-143,342,959.10-64,700,850.87

Finding the Fourth Proportional to 103,839,736.46, 143,342,959.10 and 64,700,850.87

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Solution

The fourth proportional to 103,839,736.46, 143,342,959.10 and 64,700,850.87 is: 89,314,666.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,839,736.46 : 143,342,959.10 = 64,700,850.87 : x
  2. Step 2: Convert to fraction form
    103,839,736.46/143,342,959.10 = 64,700,850.87/x
  3. Step 3: Cross multiply
    103,839,736.46x = 143,342,959.10 × 64,700,850.87
  4. Step 4: Simplify right side
    103,839,736.46x = 9,274,411,419,670,104
  5. Step 5: Solve for x
    x = 9,274,411,419,670,104/103,839,736.46
  6. Step 6: Final answer
    x = 89,314,666.39

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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.