Home / 120,334.63-166,055.46-65,876.35

Finding the Fourth Proportional to 120,334.63, 166,055.46 and 65,876.35

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Solution

The fourth proportional to 120,334.63, 166,055.46 and 65,876.35 is: 90,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,334.63 : 166,055.46 = 65,876.35 : x
  2. Step 2: Convert to fraction form
    120,334.63/166,055.46 = 65,876.35/x
  3. Step 3: Cross multiply
    120,334.63x = 166,055.46 × 65,876.35
  4. Step 4: Simplify right side
    120,334.63x = 10,939,127,948.26
  5. Step 5: Solve for x
    x = 10,939,127,948.26/120,334.63
  6. Step 6: Final answer
    x = 90,905.90

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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.