Home / 156,020.10-234,260.55-120,999.30

Finding the Fourth Proportional to 156,020.10, 234,260.55 and 120,999.30

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Solution

The fourth proportional to 156,020.10, 234,260.55 and 120,999.30 is: 181,677.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,020.10 : 234,260.55 = 120,999.30 : x
  2. Step 2: Convert to fraction form
    156,020.10/234,260.55 = 120,999.30/x
  3. Step 3: Cross multiply
    156,020.10x = 234,260.55 × 120,999.30
  4. Step 4: Simplify right side
    156,020.10x = 28,345,362,567.62
  5. Step 5: Solve for x
    x = 28,345,362,567.62/156,020.10
  6. Step 6: Final answer
    x = 181,677.63

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1.5x scale

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.