Home / 145,977.46-218,539.71-131,969.86

Finding the Fourth Proportional to 145,977.46, 218,539.71 and 131,969.86

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Solution

The fourth proportional to 145,977.46, 218,539.71 and 131,969.86 is: 197,569.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,977.46 : 218,539.71 = 131,969.86 : x
  2. Step 2: Convert to fraction form
    145,977.46/218,539.71 = 131,969.86/x
  3. Step 3: Cross multiply
    145,977.46x = 218,539.71 × 131,969.86
  4. Step 4: Simplify right side
    145,977.46x = 28,840,654,933.14
  5. Step 5: Solve for x
    x = 28,840,654,933.14/145,977.46
  6. Step 6: Final answer
    x = 197,569.23

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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.