Home / 165,133.80-247,527.54-80,777.52

Finding the Fourth Proportional to 165,133.80, 247,527.54 and 80,777.52

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Solution

The fourth proportional to 165,133.80, 247,527.54 and 80,777.52 is: 121,081.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,133.80 : 247,527.54 = 80,777.52 : x
  2. Step 2: Convert to fraction form
    165,133.80/247,527.54 = 80,777.52/x
  3. Step 3: Cross multiply
    165,133.80x = 247,527.54 × 80,777.52
  4. Step 4: Simplify right side
    165,133.80x = 19,994,660,812.90
  5. Step 5: Solve for x
    x = 19,994,660,812.90/165,133.80
  6. Step 6: Final answer
    x = 121,081.58

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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.