Home / 135,864.59-187,519.73-86,774.67

Finding the Fourth Proportional to 135,864.59, 187,519.73 and 86,774.67

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Solution

The fourth proportional to 135,864.59, 187,519.73 and 86,774.67 is: 119,766.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,864.59 : 187,519.73 = 86,774.67 : x
  2. Step 2: Convert to fraction form
    135,864.59/187,519.73 = 86,774.67/x
  3. Step 3: Cross multiply
    135,864.59x = 187,519.73 × 86,774.67
  4. Step 4: Simplify right side
    135,864.59x = 16,271,962,255.37
  5. Step 5: Solve for x
    x = 16,271,962,255.37/135,864.59
  6. Step 6: Final answer
    x = 119,766.03

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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.