Home / 165,087.10-247,630.65-76,513.60

Finding the Fourth Proportional to 165,087.10, 247,630.65 and 76,513.60

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Solution

The fourth proportional to 165,087.10, 247,630.65 and 76,513.60 is: 114,770.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,087.10 : 247,630.65 = 76,513.60 : x
  2. Step 2: Convert to fraction form
    165,087.10/247,630.65 = 76,513.60/x
  3. Step 3: Cross multiply
    165,087.10x = 247,630.65 × 76,513.60
  4. Step 4: Simplify right side
    165,087.10x = 18,947,112,501.84
  5. Step 5: Solve for x
    x = 18,947,112,501.84/165,087.10
  6. Step 6: Final answer
    x = 114,770.40

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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.