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Finding the Fourth Proportional to 130,464.52, 179,865.30 and 85,052.68

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Solution

The fourth proportional to 130,464.52, 179,865.30 and 85,052.68 is: 117,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,464.52 : 179,865.30 = 85,052.68 : x
  2. Step 2: Convert to fraction form
    130,464.52/179,865.30 = 85,052.68/x
  3. Step 3: Cross multiply
    130,464.52x = 179,865.30 × 85,052.68
  4. Step 4: Simplify right side
    130,464.52x = 15,298,025,804.00
  5. Step 5: Solve for x
    x = 15,298,025,804.00/130,464.52
  6. Step 6: Final answer
    x = 117,258.13

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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.