Home / 156,865.20-235,297.80-83,137.20

Finding the Fourth Proportional to 156,865.20, 235,297.80 and 83,137.20

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Solution

The fourth proportional to 156,865.20, 235,297.80 and 83,137.20 is: 124,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,865.20 : 235,297.80 = 83,137.20 : x
  2. Step 2: Convert to fraction form
    156,865.20/235,297.80 = 83,137.20/x
  3. Step 3: Cross multiply
    156,865.20x = 235,297.80 × 83,137.20
  4. Step 4: Simplify right side
    156,865.20x = 19,562,000,258.16
  5. Step 5: Solve for x
    x = 19,562,000,258.16/156,865.20
  6. Step 6: Final answer
    x = 124,705.80

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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.