Home / 171,336.96-257,159.04-143,431.68

Finding the Fourth Proportional to 171,336.96, 257,159.04 and 143,431.68

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Solution

The fourth proportional to 171,336.96, 257,159.04 and 143,431.68 is: 215,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,336.96 : 257,159.04 = 143,431.68 : x
  2. Step 2: Convert to fraction form
    171,336.96/257,159.04 = 143,431.68/x
  3. Step 3: Cross multiply
    171,336.96x = 257,159.04 × 143,431.68
  4. Step 4: Simplify right side
    171,336.96x = 36,884,753,134.39
  5. Step 5: Solve for x
    x = 36,884,753,134.39/171,336.96
  6. Step 6: Final answer
    x = 215,276.10

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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.