Home / 117,054.20-161,534.86-63,339.05

Finding the Fourth Proportional to 117,054.20, 161,534.86 and 63,339.05

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Solution

The fourth proportional to 117,054.20, 161,534.86 and 63,339.05 is: 87,407.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,054.20 : 161,534.86 = 63,339.05 : x
  2. Step 2: Convert to fraction form
    117,054.20/161,534.86 = 63,339.05/x
  3. Step 3: Cross multiply
    117,054.20x = 161,534.86 × 63,339.05
  4. Step 4: Simplify right side
    117,054.20x = 10,231,464,819.77
  5. Step 5: Solve for x
    x = 10,231,464,819.77/117,054.20
  6. Step 6: Final answer
    x = 87,407.92

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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.