Home / 117,708.15-162,440.45-63,996.78

Finding the Fourth Proportional to 117,708.15, 162,440.45 and 63,996.78

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Solution

The fourth proportional to 117,708.15, 162,440.45 and 63,996.78 is: 88,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,708.15 : 162,440.45 = 63,996.78 : x
  2. Step 2: Convert to fraction form
    117,708.15/162,440.45 = 63,996.78/x
  3. Step 3: Cross multiply
    117,708.15x = 162,440.45 × 63,996.78
  4. Step 4: Simplify right side
    117,708.15x = 10,395,665,741.75
  5. Step 5: Solve for x
    x = 10,395,665,741.75/117,708.15
  6. Step 6: Final answer
    x = 88,317.30

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1.5x scale

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.