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Finding the Fourth Proportional to 130,390.60, 179,938.02 and 73,800.04

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Solution

The fourth proportional to 130,390.60, 179,938.02 and 73,800.04 is: 101,843.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,390.60 : 179,938.02 = 73,800.04 : x
  2. Step 2: Convert to fraction form
    130,390.60/179,938.02 = 73,800.04/x
  3. Step 3: Cross multiply
    130,390.60x = 179,938.02 × 73,800.04
  4. Step 4: Simplify right side
    130,390.60x = 13,279,433,073.52
  5. Step 5: Solve for x
    x = 13,279,433,073.52/130,390.60
  6. Step 6: Final answer
    x = 101,843.48

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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.