Home / 113,782.32-156,930.62-73,500.21

Finding the Fourth Proportional to 113,782.32, 156,930.62 and 73,500.21

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Solution

The fourth proportional to 113,782.32, 156,930.62 and 73,500.21 is: 101,372.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,782.32 : 156,930.62 = 73,500.21 : x
  2. Step 2: Convert to fraction form
    113,782.32/156,930.62 = 73,500.21/x
  3. Step 3: Cross multiply
    113,782.32x = 156,930.62 × 73,500.21
  4. Step 4: Simplify right side
    113,782.32x = 11,534,433,157.93
  5. Step 5: Solve for x
    x = 11,534,433,157.93/113,782.32
  6. Step 6: Final answer
    x = 101,372.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.