Home / 105,788,859.20-158,683,288.80-98,136,108.80

Finding the Fourth Proportional to 105,788,859.20, 158,683,288.80 and 98,136,108.80

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Solution

The fourth proportional to 105,788,859.20, 158,683,288.80 and 98,136,108.80 is: 147,204,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,788,859.20 : 158,683,288.80 = 98,136,108.80 : x
  2. Step 2: Convert to fraction form
    105,788,859.20/158,683,288.80 = 98,136,108.80/x
  3. Step 3: Cross multiply
    105,788,859.20x = 158,683,288.80 × 98,136,108.80
  4. Step 4: Simplify right side
    105,788,859.20x = 15,572,560,494,418,622
  5. Step 5: Solve for x
    x = 15,572,560,494,418,622/105,788,859.20
  6. Step 6: Final answer
    x = 147,204,163.20

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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.