Home / 116,670.72-174,743.40-81,766.20

Finding the Fourth Proportional to 116,670.72, 174,743.40 and 81,766.20

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Solution

The fourth proportional to 116,670.72, 174,743.40 and 81,766.20 is: 122,465.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,670.72 : 174,743.40 = 81,766.20 : x
  2. Step 2: Convert to fraction form
    116,670.72/174,743.40 = 81,766.20/x
  3. Step 3: Cross multiply
    116,670.72x = 174,743.40 × 81,766.20
  4. Step 4: Simplify right side
    116,670.72x = 14,288,103,793.08
  5. Step 5: Solve for x
    x = 14,288,103,793.08/116,670.72
  6. Step 6: Final answer
    x = 122,465.21

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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.