Home / 130,330.49-179,814.26-72,961.37

Finding the Fourth Proportional to 130,330.49, 179,814.26 and 72,961.37

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Solution

The fourth proportional to 130,330.49, 179,814.26 and 72,961.37 is: 100,663.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,330.49 : 179,814.26 = 72,961.37 : x
  2. Step 2: Convert to fraction form
    130,330.49/179,814.26 = 72,961.37/x
  3. Step 3: Cross multiply
    130,330.49x = 179,814.26 × 72,961.37
  4. Step 4: Simplify right side
    130,330.49x = 13,119,494,712.77
  5. Step 5: Solve for x
    x = 13,119,494,712.77/130,330.49
  6. Step 6: Final answer
    x = 100,663.28

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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.