Home / 174,017.20-261,025.80-80,705.20

Finding the Fourth Proportional to 174,017.20, 261,025.80 and 80,705.20

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Solution

The fourth proportional to 174,017.20, 261,025.80 and 80,705.20 is: 121,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,017.20 : 261,025.80 = 80,705.20 : x
  2. Step 2: Convert to fraction form
    174,017.20/261,025.80 = 80,705.20/x
  3. Step 3: Cross multiply
    174,017.20x = 261,025.80 × 80,705.20
  4. Step 4: Simplify right side
    174,017.20x = 21,066,139,394.16
  5. Step 5: Solve for x
    x = 21,066,139,394.16/174,017.20
  6. Step 6: Final answer
    x = 121,057.80

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1.5x scale

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.