Home / 171,816.96-257,715.18-102,139.68

Finding the Fourth Proportional to 171,816.96, 257,715.18 and 102,139.68

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Solution

The fourth proportional to 171,816.96, 257,715.18 and 102,139.68 is: 153,203.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,816.96 : 257,715.18 = 102,139.68 : x
  2. Step 2: Convert to fraction form
    171,816.96/257,715.18 = 102,139.68/x
  3. Step 3: Cross multiply
    171,816.96x = 257,715.18 × 102,139.68
  4. Step 4: Simplify right side
    171,816.96x = 26,322,946,016.34
  5. Step 5: Solve for x
    x = 26,322,946,016.34/171,816.96
  6. Step 6: Final answer
    x = 153,203.42

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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.