Home / 121,720.20-182,580.30-69,232.20

Finding the Fourth Proportional to 121,720.20, 182,580.30 and 69,232.20

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Solution

The fourth proportional to 121,720.20, 182,580.30 and 69,232.20 is: 103,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,720.20 : 182,580.30 = 69,232.20 : x
  2. Step 2: Convert to fraction form
    121,720.20/182,580.30 = 69,232.20/x
  3. Step 3: Cross multiply
    121,720.20x = 182,580.30 × 69,232.20
  4. Step 4: Simplify right side
    121,720.20x = 12,640,435,845.66
  5. Step 5: Solve for x
    x = 12,640,435,845.66/121,720.20
  6. Step 6: Final answer
    x = 103,848.30

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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.