Home / 130,407.72-179,956.32-80,097

Finding the Fourth Proportional to 130,407.72, 179,956.32 and 80,097

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Solution

The fourth proportional to 130,407.72, 179,956.32 and 80,097 is: 110,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,407.72 : 179,956.32 = 80,097 : x
  2. Step 2: Convert to fraction form
    130,407.72/179,956.32 = 80,097/x
  3. Step 3: Cross multiply
    130,407.72x = 179,956.32 × 80,097
  4. Step 4: Simplify right side
    130,407.72x = 14,413,961,363.04
  5. Step 5: Solve for x
    x = 14,413,961,363.04/130,407.72
  6. Step 6: Final answer
    x = 110,529.97

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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.