Home / 117,120.60-161,624.50-63,405.15

Finding the Fourth Proportional to 117,120.60, 161,624.50 and 63,405.15

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Solution

The fourth proportional to 117,120.60, 161,624.50 and 63,405.15 is: 87,498.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,120.60 : 161,624.50 = 63,405.15 : x
  2. Step 2: Convert to fraction form
    117,120.60/161,624.50 = 63,405.15/x
  3. Step 3: Cross multiply
    117,120.60x = 161,624.50 × 63,405.15
  4. Step 4: Simplify right side
    117,120.60x = 10,247,824,901.57
  5. Step 5: Solve for x
    x = 10,247,824,901.57/117,120.60
  6. Step 6: Final answer
    x = 87,498.06

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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.