Home / 130,419.72-179,964.45-73,051.20

Finding the Fourth Proportional to 130,419.72, 179,964.45 and 73,051.20

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Solution

The fourth proportional to 130,419.72, 179,964.45 and 73,051.20 is: 100,802.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,419.72 : 179,964.45 = 73,051.20 : x
  2. Step 2: Convert to fraction form
    130,419.72/179,964.45 = 73,051.20/x
  3. Step 3: Cross multiply
    130,419.72x = 179,964.45 × 73,051.20
  4. Step 4: Simplify right side
    130,419.72x = 13,146,619,029.84
  5. Step 5: Solve for x
    x = 13,146,619,029.84/130,419.72
  6. Step 6: Final answer
    x = 100,802.39

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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.