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Finding the Fourth Proportional to 130,388.87, 179,905.79 and 73,800.24

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Solution

The fourth proportional to 130,388.87, 179,905.79 and 73,800.24 is: 101,826.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,388.87 : 179,905.79 = 73,800.24 : x
  2. Step 2: Convert to fraction form
    130,388.87/179,905.79 = 73,800.24/x
  3. Step 3: Cross multiply
    130,388.87x = 179,905.79 × 73,800.24
  4. Step 4: Simplify right side
    130,388.87x = 13,277,090,479.39
  5. Step 5: Solve for x
    x = 13,277,090,479.39/130,388.87
  6. Step 6: Final answer
    x = 101,826.87

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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.