Home / 116,531.79-174,517.29-78,977.92

Finding the Fourth Proportional to 116,531.79, 174,517.29 and 78,977.92

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Solution

The fourth proportional to 116,531.79, 174,517.29 and 78,977.92 is: 118,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,531.79 : 174,517.29 = 78,977.92 : x
  2. Step 2: Convert to fraction form
    116,531.79/174,517.29 = 78,977.92/x
  3. Step 3: Cross multiply
    116,531.79x = 174,517.29 × 78,977.92
  4. Step 4: Simplify right side
    116,531.79x = 13,783,012,568.24
  5. Step 5: Solve for x
    x = 13,783,012,568.24/116,531.79
  6. Step 6: Final answer
    x = 118,276.85

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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.