Home / 156,840.74-235,128.86-68,027.36

Finding the Fourth Proportional to 156,840.74, 235,128.86 and 68,027.36

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Solution

The fourth proportional to 156,840.74, 235,128.86 and 68,027.36 is: 101,983.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,840.74 : 235,128.86 = 68,027.36 : x
  2. Step 2: Convert to fraction form
    156,840.74/235,128.86 = 68,027.36/x
  3. Step 3: Cross multiply
    156,840.74x = 235,128.86 × 68,027.36
  4. Step 4: Simplify right side
    156,840.74x = 15,995,194,089.83
  5. Step 5: Solve for x
    x = 15,995,194,089.83/156,840.74
  6. Step 6: Final answer
    x = 101,983.67

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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.