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Finding the Fourth Proportional to 130,472.88, 180,053.28 and 73,895.28

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Solution

The fourth proportional to 130,472.88, 180,053.28 and 73,895.28 is: 101,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,472.88 : 180,053.28 = 73,895.28 : x
  2. Step 2: Convert to fraction form
    130,472.88/180,053.28 = 73,895.28/x
  3. Step 3: Cross multiply
    130,472.88x = 180,053.28 × 73,895.28
  4. Step 4: Simplify right side
    130,472.88x = 13,305,087,540.52
  5. Step 5: Solve for x
    x = 13,305,087,540.52/130,472.88
  6. Step 6: Final answer
    x = 101,975.89

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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.