Home / 156,930.81-216,563.61-88,960.60

Finding the Fourth Proportional to 156,930.81, 216,563.61 and 88,960.60

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Solution

The fourth proportional to 156,930.81, 216,563.61 and 88,960.60 is: 122,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930.81 : 216,563.61 = 88,960.60 : x
  2. Step 2: Convert to fraction form
    156,930.81/216,563.61 = 88,960.60/x
  3. Step 3: Cross multiply
    156,930.81x = 216,563.61 × 88,960.60
  4. Step 4: Simplify right side
    156,930.81x = 19,265,628,787.67
  5. Step 5: Solve for x
    x = 19,265,628,787.67/156,930.81
  6. Step 6: Final answer
    x = 122,765.12

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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.