Home / 171,986.40-257,979.60-165,097.35

Finding the Fourth Proportional to 171,986.40, 257,979.60 and 165,097.35

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Solution

The fourth proportional to 171,986.40, 257,979.60 and 165,097.35 is: 247,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,986.40 : 257,979.60 = 165,097.35 : x
  2. Step 2: Convert to fraction form
    171,986.40/257,979.60 = 165,097.35/x
  3. Step 3: Cross multiply
    171,986.40x = 257,979.60 × 165,097.35
  4. Step 4: Simplify right side
    171,986.40x = 42,591,748,314.06
  5. Step 5: Solve for x
    x = 42,591,748,314.06/171,986.40
  6. Step 6: Final answer
    x = 247,646.03

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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.