Home / 117,478.35-162,119.58-63,762.90

Finding the Fourth Proportional to 117,478.35, 162,119.58 and 63,762.90

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Solution

The fourth proportional to 117,478.35, 162,119.58 and 63,762.90 is: 87,992.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,478.35 : 162,119.58 = 63,762.90 : x
  2. Step 2: Convert to fraction form
    117,478.35/162,119.58 = 63,762.90/x
  3. Step 3: Cross multiply
    117,478.35x = 162,119.58 × 63,762.90
  4. Step 4: Simplify right side
    117,478.35x = 10,337,213,720.52
  5. Step 5: Solve for x
    x = 10,337,213,720.52/117,478.35
  6. Step 6: Final answer
    x = 87,992.50

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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.