Home / 171,902.17-257,675.86-72,120.30

Finding the Fourth Proportional to 171,902.17, 257,675.86 and 72,120.30

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Solution

The fourth proportional to 171,902.17, 257,675.86 and 72,120.30 is: 108,106.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,902.17 : 257,675.86 = 72,120.30 : x
  2. Step 2: Convert to fraction form
    171,902.17/257,675.86 = 72,120.30/x
  3. Step 3: Cross multiply
    171,902.17x = 257,675.86 × 72,120.30
  4. Step 4: Simplify right side
    171,902.17x = 18,583,660,325.96
  5. Step 5: Solve for x
    x = 18,583,660,325.96/171,902.17
  6. Step 6: Final answer
    x = 108,106.03

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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.