Home / 117,421.26-162,039.88-63,705.88

Finding the Fourth Proportional to 117,421.26, 162,039.88 and 63,705.88

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Solution

The fourth proportional to 117,421.26, 162,039.88 and 63,705.88 is: 87,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,421.26 : 162,039.88 = 63,705.88 : x
  2. Step 2: Convert to fraction form
    117,421.26/162,039.88 = 63,705.88/x
  3. Step 3: Cross multiply
    117,421.26x = 162,039.88 × 63,705.88
  4. Step 4: Simplify right side
    117,421.26x = 10,322,893,150.49
  5. Step 5: Solve for x
    x = 10,322,893,150.49/117,421.26
  6. Step 6: Final answer
    x = 87,913.32

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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.