Home / 124,308.85-186,512.48-45,429.22

Finding the Fourth Proportional to 124,308.85, 186,512.48 and 45,429.22

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Solution

The fourth proportional to 124,308.85, 186,512.48 and 45,429.22 is: 68,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,308.85 : 186,512.48 = 45,429.22 : x
  2. Step 2: Convert to fraction form
    124,308.85/186,512.48 = 45,429.22/x
  3. Step 3: Cross multiply
    124,308.85x = 186,512.48 × 45,429.22
  4. Step 4: Simplify right side
    124,308.85x = 8,473,116,486.67
  5. Step 5: Solve for x
    x = 8,473,116,486.67/124,308.85
  6. Step 6: Final answer
    x = 68,161.81

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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.