Home / 156,738.20-235,107.30-83,010.20

Finding the Fourth Proportional to 156,738.20, 235,107.30 and 83,010.20

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Solution

The fourth proportional to 156,738.20, 235,107.30 and 83,010.20 is: 124,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,738.20 : 235,107.30 = 83,010.20 : x
  2. Step 2: Convert to fraction form
    156,738.20/235,107.30 = 83,010.20/x
  3. Step 3: Cross multiply
    156,738.20x = 235,107.30 × 83,010.20
  4. Step 4: Simplify right side
    156,738.20x = 19,516,303,994.46
  5. Step 5: Solve for x
    x = 19,516,303,994.46/156,738.20
  6. Step 6: Final answer
    x = 124,515.30

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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.