Home / 116,219.20-174,328.80-86,694.70

Finding the Fourth Proportional to 116,219.20, 174,328.80 and 86,694.70

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Solution

The fourth proportional to 116,219.20, 174,328.80 and 86,694.70 is: 130,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,219.20 : 174,328.80 = 86,694.70 : x
  2. Step 2: Convert to fraction form
    116,219.20/174,328.80 = 86,694.70/x
  3. Step 3: Cross multiply
    116,219.20x = 174,328.80 × 86,694.70
  4. Step 4: Simplify right side
    116,219.20x = 15,113,383,017.36
  5. Step 5: Solve for x
    x = 15,113,383,017.36/116,219.20
  6. Step 6: Final answer
    x = 130,042.05

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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.