Home / 97,823.60-135,063.96-72,335.60

Finding the Fourth Proportional to 97,823.60, 135,063.96 and 72,335.60

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Solution

The fourth proportional to 97,823.60, 135,063.96 and 72,335.60 is: 99,872.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,823.60 : 135,063.96 = 72,335.60 : x
  2. Step 2: Convert to fraction form
    97,823.60/135,063.96 = 72,335.60/x
  3. Step 3: Cross multiply
    97,823.60x = 135,063.96 × 72,335.60
  4. Step 4: Simplify right side
    97,823.60x = 9,769,932,584.98
  5. Step 5: Solve for x
    x = 9,769,932,584.98/97,823.60
  6. Step 6: Final answer
    x = 99,872.96

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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.