Home / 187,055.80-258,136.38-102,172.84

Finding the Fourth Proportional to 187,055.80, 258,136.38 and 102,172.84

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Solution

The fourth proportional to 187,055.80, 258,136.38 and 102,172.84 is: 140,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,055.80 : 258,136.38 = 102,172.84 : x
  2. Step 2: Convert to fraction form
    187,055.80/258,136.38 = 102,172.84/x
  3. Step 3: Cross multiply
    187,055.80x = 258,136.38 × 102,172.84
  4. Step 4: Simplify right side
    187,055.80x = 26,374,527,051.92
  5. Step 5: Solve for x
    x = 26,374,527,051.92/187,055.80
  6. Step 6: Final answer
    x = 140,998.18

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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.