Home / 135,564.60-203,444.10-76,337.40

Finding the Fourth Proportional to 135,564.60, 203,444.10 and 76,337.40

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Solution

The fourth proportional to 135,564.60, 203,444.10 and 76,337.40 is: 114,560.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,564.60 : 203,444.10 = 76,337.40 : x
  2. Step 2: Convert to fraction form
    135,564.60/203,444.10 = 76,337.40/x
  3. Step 3: Cross multiply
    135,564.60x = 203,444.10 × 76,337.40
  4. Step 4: Simplify right side
    135,564.60x = 15,530,393,639.34
  5. Step 5: Solve for x
    x = 15,530,393,639.34/135,564.60
  6. Step 6: Final answer
    x = 114,560.83

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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.