Home / 135,346.50-186,735.22-78,746.94

Finding the Fourth Proportional to 135,346.50, 186,735.22 and 78,746.94

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Solution

The fourth proportional to 135,346.50, 186,735.22 and 78,746.94 is: 108,645.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,346.50 : 186,735.22 = 78,746.94 : x
  2. Step 2: Convert to fraction form
    135,346.50/186,735.22 = 78,746.94/x
  3. Step 3: Cross multiply
    135,346.50x = 186,735.22 × 78,746.94
  4. Step 4: Simplify right side
    135,346.50x = 14,704,827,165.23
  5. Step 5: Solve for x
    x = 14,704,827,165.23/135,346.50
  6. Step 6: Final answer
    x = 108,645.79

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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.