Home / 156,733.20-235,229.40-72,622.80

Finding the Fourth Proportional to 156,733.20, 235,229.40 and 72,622.80

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Solution

The fourth proportional to 156,733.20, 235,229.40 and 72,622.80 is: 108,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,733.20 : 235,229.40 = 72,622.80 : x
  2. Step 2: Convert to fraction form
    156,733.20/235,229.40 = 72,622.80/x
  3. Step 3: Cross multiply
    156,733.20x = 235,229.40 × 72,622.80
  4. Step 4: Simplify right side
    156,733.20x = 17,083,017,670.32
  5. Step 5: Solve for x
    x = 17,083,017,670.32/156,733.20
  6. Step 6: Final answer
    x = 108,994.25

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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.