Home / 103,839,617.49-143,342,795.24-64,700,731.97

Finding the Fourth Proportional to 103,839,617.49, 143,342,795.24 and 64,700,731.97

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Solution

The fourth proportional to 103,839,617.49, 143,342,795.24 and 64,700,731.97 is: 89,314,502.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,839,617.49 : 143,342,795.24 = 64,700,731.97 : x
  2. Step 2: Convert to fraction form
    103,839,617.49/143,342,795.24 = 64,700,731.97/x
  3. Step 3: Cross multiply
    103,839,617.49x = 143,342,795.24 × 64,700,731.97
  4. Step 4: Simplify right side
    103,839,617.49x = 9,274,383,774,393,778
  5. Step 5: Solve for x
    x = 9,274,383,774,393,778/103,839,617.49
  6. Step 6: Final answer
    x = 89,314,502.49

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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.