Home / 171,901.17-257,674.37-72,119.30

Finding the Fourth Proportional to 171,901.17, 257,674.37 and 72,119.30

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Solution

The fourth proportional to 171,901.17, 257,674.37 and 72,119.30 is: 108,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,901.17 : 257,674.37 = 72,119.30 : x
  2. Step 2: Convert to fraction form
    171,901.17/257,674.37 = 72,119.30/x
  3. Step 3: Cross multiply
    171,901.17x = 257,674.37 × 72,119.30
  4. Step 4: Simplify right side
    171,901.17x = 18,583,293,543.37
  5. Step 5: Solve for x
    x = 18,583,293,543.37/171,901.17
  6. Step 6: Final answer
    x = 108,104.52

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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.