Home / 117,478.17-162,120.03-63,763.19

Finding the Fourth Proportional to 117,478.17, 162,120.03 and 63,763.19

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Solution

The fourth proportional to 117,478.17, 162,120.03 and 63,763.19 is: 87,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,478.17 : 162,120.03 = 63,763.19 : x
  2. Step 2: Convert to fraction form
    117,478.17/162,120.03 = 63,763.19/x
  3. Step 3: Cross multiply
    117,478.17x = 162,120.03 × 63,763.19
  4. Step 4: Simplify right side
    117,478.17x = 10,337,290,275.70
  5. Step 5: Solve for x
    x = 10,337,290,275.70/117,478.17
  6. Step 6: Final answer
    x = 87,993.29

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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.