Home / 156,635.80-234,435.30-121,384.60

Finding the Fourth Proportional to 156,635.80, 234,435.30 and 121,384.60

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Solution

The fourth proportional to 156,635.80, 234,435.30 and 121,384.60 is: 181,675.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,635.80 : 234,435.30 = 121,384.60 : x
  2. Step 2: Convert to fraction form
    156,635.80/234,435.30 = 121,384.60/x
  3. Step 3: Cross multiply
    156,635.80x = 234,435.30 × 121,384.60
  4. Step 4: Simplify right side
    156,635.80x = 28,456,835,116.38
  5. Step 5: Solve for x
    x = 28,456,835,116.38/156,635.80
  6. Step 6: Final answer
    x = 181,675.17

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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.