Home / 117,650.08-162,275-77,350.96

Finding the Fourth Proportional to 117,650.08, 162,275 and 77,350.96

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Solution

The fourth proportional to 117,650.08, 162,275 and 77,350.96 is: 106,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,650.08 : 162,275 = 77,350.96 : x
  2. Step 2: Convert to fraction form
    117,650.08/162,275 = 77,350.96/x
  3. Step 3: Cross multiply
    117,650.08x = 162,275 × 77,350.96
  4. Step 4: Simplify right side
    117,650.08x = 12,552,127,034.00
  5. Step 5: Solve for x
    x = 12,552,127,034.00/117,650.08
  6. Step 6: Final answer
    x = 106,690.34

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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.