Home / 105,192,538.90-157,788,808.35-68,912,833.30

Finding the Fourth Proportional to 105,192,538.90, 157,788,808.35 and 68,912,833.30

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Solution

The fourth proportional to 105,192,538.90, 157,788,808.35 and 68,912,833.30 is: 103,369,249.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,192,538.90 : 157,788,808.35 = 68,912,833.30 : x
  2. Step 2: Convert to fraction form
    105,192,538.90/157,788,808.35 = 68,912,833.30/x
  3. Step 3: Cross multiply
    105,192,538.90x = 157,788,808.35 × 68,912,833.30
  4. Step 4: Simplify right side
    105,192,538.90x = 10,873,673,846,429,198
  5. Step 5: Solve for x
    x = 10,873,673,846,429,198/105,192,538.90
  6. Step 6: Final answer
    x = 103,369,249.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.