Home / 130,958.19-180,723.56-74,369.97

Finding the Fourth Proportional to 130,958.19, 180,723.56 and 74,369.97

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Solution

The fourth proportional to 130,958.19, 180,723.56 and 74,369.97 is: 102,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,958.19 : 180,723.56 = 74,369.97 : x
  2. Step 2: Convert to fraction form
    130,958.19/180,723.56 = 74,369.97/x
  3. Step 3: Cross multiply
    130,958.19x = 180,723.56 × 74,369.97
  4. Step 4: Simplify right side
    130,958.19x = 13,440,405,104.26
  5. Step 5: Solve for x
    x = 13,440,405,104.26/130,958.19
  6. Step 6: Final answer
    x = 102,631.27

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1.5x scale

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.