Home / 156,739.30-235,149.48-67,972.30

Finding the Fourth Proportional to 156,739.30, 235,149.48 and 67,972.30

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Solution

The fourth proportional to 156,739.30, 235,149.48 and 67,972.30 is: 101,976.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,739.30 : 235,149.48 = 67,972.30 : x
  2. Step 2: Convert to fraction form
    156,739.30/235,149.48 = 67,972.30/x
  3. Step 3: Cross multiply
    156,739.30x = 235,149.48 × 67,972.30
  4. Step 4: Simplify right side
    156,739.30x = 15,983,650,999.40
  5. Step 5: Solve for x
    x = 15,983,650,999.40/156,739.30
  6. Step 6: Final answer
    x = 101,976.03

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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.