Home / 97,619.60-134,723.40-55,185.68

Finding the Fourth Proportional to 97,619.60, 134,723.40 and 55,185.68

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Solution

The fourth proportional to 97,619.60, 134,723.40 and 55,185.68 is: 76,160.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,619.60 : 134,723.40 = 55,185.68 : x
  2. Step 2: Convert to fraction form
    97,619.60/134,723.40 = 55,185.68/x
  3. Step 3: Cross multiply
    97,619.60x = 134,723.40 × 55,185.68
  4. Step 4: Simplify right side
    97,619.60x = 7,434,802,440.91
  5. Step 5: Solve for x
    x = 7,434,802,440.91/97,619.60
  6. Step 6: Final answer
    x = 76,160.96

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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.