Home / 156,878.24-235,217.58-72,525.66

Finding the Fourth Proportional to 156,878.24, 235,217.58 and 72,525.66

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Solution

The fourth proportional to 156,878.24, 235,217.58 and 72,525.66 is: 108,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,878.24 : 235,217.58 = 72,525.66 : x
  2. Step 2: Convert to fraction form
    156,878.24/235,217.58 = 72,525.66/x
  3. Step 3: Cross multiply
    156,878.24x = 235,217.58 × 72,525.66
  4. Step 4: Simplify right side
    156,878.24x = 17,059,310,233.10
  5. Step 5: Solve for x
    x = 17,059,310,233.10/156,878.24
  6. Step 6: Final answer
    x = 108,742.36

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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.