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Finding the Fourth Proportional to 130,395.52, 179,945.92 and 73,825.12

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Solution

The fourth proportional to 130,395.52, 179,945.92 and 73,825.12 is: 101,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,395.52 : 179,945.92 = 73,825.12 : x
  2. Step 2: Convert to fraction form
    130,395.52/179,945.92 = 73,825.12/x
  3. Step 3: Cross multiply
    130,395.52x = 179,945.92 × 73,825.12
  4. Step 4: Simplify right side
    130,395.52x = 13,284,529,137.51
  5. Step 5: Solve for x
    x = 13,284,529,137.51/130,395.52
  6. Step 6: Final answer
    x = 101,878.72

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1.5x scale

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.