Home / 124,131.78-186,152.31-45,222.66

Finding the Fourth Proportional to 124,131.78, 186,152.31 and 45,222.66

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Solution

The fourth proportional to 124,131.78, 186,152.31 and 45,222.66 is: 67,817.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,131.78 : 186,152.31 = 45,222.66 : x
  2. Step 2: Convert to fraction form
    124,131.78/186,152.31 = 45,222.66/x
  3. Step 3: Cross multiply
    124,131.78x = 186,152.31 × 45,222.66
  4. Step 4: Simplify right side
    124,131.78x = 8,418,302,623.34
  5. Step 5: Solve for x
    x = 8,418,302,623.34/124,131.78
  6. Step 6: Final answer
    x = 67,817.46

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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.