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Finding the Fourth Proportional to 130,374, 179,901.22 and 73,005.34

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Solution

The fourth proportional to 130,374, 179,901.22 and 73,005.34 is: 100,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,374 : 179,901.22 = 73,005.34 : x
  2. Step 2: Convert to fraction form
    130,374/179,901.22 = 73,005.34/x
  3. Step 3: Cross multiply
    130,374x = 179,901.22 × 73,005.34
  4. Step 4: Simplify right side
    130,374x = 13,133,749,732.51
  5. Step 5: Solve for x
    x = 13,133,749,732.51/130,374
  6. Step 6: Final answer
    x = 100,739.03

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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.