Home / 136,172.10-187,914.78-75,741.43

Finding the Fourth Proportional to 136,172.10, 187,914.78 and 75,741.43

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Solution

The fourth proportional to 136,172.10, 187,914.78 and 75,741.43 is: 104,521.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,172.10 : 187,914.78 = 75,741.43 : x
  2. Step 2: Convert to fraction form
    136,172.10/187,914.78 = 75,741.43/x
  3. Step 3: Cross multiply
    136,172.10x = 187,914.78 × 75,741.43
  4. Step 4: Simplify right side
    136,172.10x = 14,232,934,155.34
  5. Step 5: Solve for x
    x = 14,232,934,155.34/136,172.10
  6. Step 6: Final answer
    x = 104,521.66

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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.