Home / 171,370.04-257,013.66-66,121.88

Finding the Fourth Proportional to 171,370.04, 257,013.66 and 66,121.88

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Solution

The fourth proportional to 171,370.04, 257,013.66 and 66,121.88 is: 99,166.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,370.04 : 257,013.66 = 66,121.88 : x
  2. Step 2: Convert to fraction form
    171,370.04/257,013.66 = 66,121.88/x
  3. Step 3: Cross multiply
    171,370.04x = 257,013.66 × 66,121.88
  4. Step 4: Simplify right side
    171,370.04x = 16,994,226,384.88
  5. Step 5: Solve for x
    x = 16,994,226,384.88/171,370.04
  6. Step 6: Final answer
    x = 99,166.85

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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.