Home / 174,905.80-262,056.30-81,219.40

Finding the Fourth Proportional to 174,905.80, 262,056.30 and 81,219.40

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Solution

The fourth proportional to 174,905.80, 262,056.30 and 81,219.40 is: 121,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,905.80 : 262,056.30 = 81,219.40 : x
  2. Step 2: Convert to fraction form
    174,905.80/262,056.30 = 81,219.40/x
  3. Step 3: Cross multiply
    174,905.80x = 262,056.30 × 81,219.40
  4. Step 4: Simplify right side
    174,905.80x = 21,284,055,452.22
  5. Step 5: Solve for x
    x = 21,284,055,452.22/174,905.80
  6. Step 6: Final answer
    x = 121,688.68

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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.