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Finding the Fourth Proportional to 130,431.96, 179,980.92 and 73,063.08

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Solution

The fourth proportional to 130,431.96, 179,980.92 and 73,063.08 is: 100,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,431.96 : 179,980.92 = 73,063.08 : x
  2. Step 2: Convert to fraction form
    130,431.96/179,980.92 = 73,063.08/x
  3. Step 3: Cross multiply
    130,431.96x = 179,980.92 × 73,063.08
  4. Step 4: Simplify right side
    130,431.96x = 13,149,960,356.43
  5. Step 5: Solve for x
    x = 13,149,960,356.43/130,431.96
  6. Step 6: Final answer
    x = 100,818.54

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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.