Home / 156,581.80-216,138.92-92,919.58

Finding the Fourth Proportional to 156,581.80, 216,138.92 and 92,919.58

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Solution

The fourth proportional to 156,581.80, 216,138.92 and 92,919.58 is: 128,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,581.80 : 216,138.92 = 92,919.58 : x
  2. Step 2: Convert to fraction form
    156,581.80/216,138.92 = 92,919.58/x
  3. Step 3: Cross multiply
    156,581.80x = 216,138.92 × 92,919.58
  4. Step 4: Simplify right side
    156,581.80x = 20,083,537,203.46
  5. Step 5: Solve for x
    x = 20,083,537,203.46/156,581.80
  6. Step 6: Final answer
    x = 128,262.27

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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.