Home / 117,478.34-162,119.70-63,763.35

Finding the Fourth Proportional to 117,478.34, 162,119.70 and 63,763.35

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Solution

The fourth proportional to 117,478.34, 162,119.70 and 63,763.35 is: 87,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,478.34 : 162,119.70 = 63,763.35 : x
  2. Step 2: Convert to fraction form
    117,478.34/162,119.70 = 63,763.35/x
  3. Step 3: Cross multiply
    117,478.34x = 162,119.70 × 63,763.35
  4. Step 4: Simplify right side
    117,478.34x = 10,337,295,173.00
  5. Step 5: Solve for x
    x = 10,337,295,173.00/117,478.34
  6. Step 6: Final answer
    x = 87,993.20

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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.