Home / 156,569.72-216,219.60-108,295.28

Finding the Fourth Proportional to 156,569.72, 216,219.60 and 108,295.28

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Solution

The fourth proportional to 156,569.72, 216,219.60 and 108,295.28 is: 149,553.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,569.72 : 216,219.60 = 108,295.28 : x
  2. Step 2: Convert to fraction form
    156,569.72/216,219.60 = 108,295.28/x
  3. Step 3: Cross multiply
    156,569.72x = 216,219.60 × 108,295.28
  4. Step 4: Simplify right side
    156,569.72x = 23,415,562,123.49
  5. Step 5: Solve for x
    x = 23,415,562,123.49/156,569.72
  6. Step 6: Final answer
    x = 149,553.58

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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.