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Finding the Fourth Proportional to 130,399.56, 179,938.26 and 73,801.08

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Solution

The fourth proportional to 130,399.56, 179,938.26 and 73,801.08 is: 101,838.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,399.56 : 179,938.26 = 73,801.08 : x
  2. Step 2: Convert to fraction form
    130,399.56/179,938.26 = 73,801.08/x
  3. Step 3: Cross multiply
    130,399.56x = 179,938.26 × 73,801.08
  4. Step 4: Simplify right side
    130,399.56x = 13,279,637,921.32
  5. Step 5: Solve for x
    x = 13,279,637,921.32/130,399.56
  6. Step 6: Final answer
    x = 101,838.06

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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.