Home / 257,834.14-386,771.88-97,986.65

Finding the Fourth Proportional to 257,834.14, 386,771.88 and 97,986.65

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Solution

The fourth proportional to 257,834.14, 386,771.88 and 97,986.65 is: 146,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,834.14 : 386,771.88 = 97,986.65 : x
  2. Step 2: Convert to fraction form
    257,834.14/386,771.88 = 97,986.65/x
  3. Step 3: Cross multiply
    257,834.14x = 386,771.88 × 97,986.65
  4. Step 4: Simplify right side
    257,834.14x = 37,898,480,835.40
  5. Step 5: Solve for x
    x = 37,898,480,835.40/257,834.14
  6. Step 6: Final answer
    x = 146,987.83

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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.