Home / 78,016.52-117,090.42-73,095.77

Finding the Fourth Proportional to 78,016.52, 117,090.42 and 73,095.77

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Solution

The fourth proportional to 78,016.52, 117,090.42 and 73,095.77 is: 109,705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,016.52 : 117,090.42 = 73,095.77 : x
  2. Step 2: Convert to fraction form
    78,016.52/117,090.42 = 73,095.77/x
  3. Step 3: Cross multiply
    78,016.52x = 117,090.42 × 73,095.77
  4. Step 4: Simplify right side
    78,016.52x = 8,558,814,409.52
  5. Step 5: Solve for x
    x = 8,558,814,409.52/78,016.52
  6. Step 6: Final answer
    x = 109,705.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.