Home / 156,954.58-216,487.64-103,222.42

Finding the Fourth Proportional to 156,954.58, 216,487.64 and 103,222.42

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Solution

The fourth proportional to 156,954.58, 216,487.64 and 103,222.42 is: 142,374.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,954.58 : 216,487.64 = 103,222.42 : x
  2. Step 2: Convert to fraction form
    156,954.58/216,487.64 = 103,222.42/x
  3. Step 3: Cross multiply
    156,954.58x = 216,487.64 × 103,222.42
  4. Step 4: Simplify right side
    156,954.58x = 22,346,378,100.89
  5. Step 5: Solve for x
    x = 22,346,378,100.89/156,954.58
  6. Step 6: Final answer
    x = 142,374.81

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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.