Home / 123,927.90-171,020.68-70,216.55

Finding the Fourth Proportional to 123,927.90, 171,020.68 and 70,216.55

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Solution

The fourth proportional to 123,927.90, 171,020.68 and 70,216.55 is: 96,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,927.90 : 171,020.68 = 70,216.55 : x
  2. Step 2: Convert to fraction form
    123,927.90/171,020.68 = 70,216.55/x
  3. Step 3: Cross multiply
    123,927.90x = 171,020.68 × 70,216.55
  4. Step 4: Simplify right side
    123,927.90x = 12,008,482,380.26
  5. Step 5: Solve for x
    x = 12,008,482,380.26/123,927.90
  6. Step 6: Final answer
    x = 96,898.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.