Home / 156,625.80-234,420.30-121,374.60

Finding the Fourth Proportional to 156,625.80, 234,420.30 and 121,374.60

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Solution

The fourth proportional to 156,625.80, 234,420.30 and 121,374.60 is: 181,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,625.80 : 234,420.30 = 121,374.60 : x
  2. Step 2: Convert to fraction form
    156,625.80/234,420.30 = 121,374.60/x
  3. Step 3: Cross multiply
    156,625.80x = 234,420.30 × 121,374.60
  4. Step 4: Simplify right side
    156,625.80x = 28,452,670,144.38
  5. Step 5: Solve for x
    x = 28,452,670,144.38/156,625.80
  6. Step 6: Final answer
    x = 181,660.17

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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.