Home / 140,234.40-193,538.71-86,518.03

Finding the Fourth Proportional to 140,234.40, 193,538.71 and 86,518.03

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Solution

The fourth proportional to 140,234.40, 193,538.71 and 86,518.03 is: 119,404.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,234.40 : 193,538.71 = 86,518.03 : x
  2. Step 2: Convert to fraction form
    140,234.40/193,538.71 = 86,518.03/x
  3. Step 3: Cross multiply
    140,234.40x = 193,538.71 × 86,518.03
  4. Step 4: Simplify right side
    140,234.40x = 16,744,588,206.12
  5. Step 5: Solve for x
    x = 16,744,588,206.12/140,234.40
  6. Step 6: Final answer
    x = 119,404.29

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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.