Home / 124,520.09-186,669.18-45,615.86

Finding the Fourth Proportional to 124,520.09, 186,669.18 and 45,615.86

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Solution

The fourth proportional to 124,520.09, 186,669.18 and 45,615.86 is: 68,383.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,520.09 : 186,669.18 = 45,615.86 : x
  2. Step 2: Convert to fraction form
    124,520.09/186,669.18 = 45,615.86/x
  3. Step 3: Cross multiply
    124,520.09x = 186,669.18 × 45,615.86
  4. Step 4: Simplify right side
    124,520.09x = 8,515,075,076.15
  5. Step 5: Solve for x
    x = 8,515,075,076.15/124,520.09
  6. Step 6: Final answer
    x = 68,383.15

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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.