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Finding the Fourth Proportional to 130,393.88, 179,944.12 and 73,816.16

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Solution

The fourth proportional to 130,393.88, 179,944.12 and 73,816.16 is: 101,866.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,393.88 : 179,944.12 = 73,816.16 : x
  2. Step 2: Convert to fraction form
    130,393.88/179,944.12 = 73,816.16/x
  3. Step 3: Cross multiply
    130,393.88x = 179,944.12 × 73,816.16
  4. Step 4: Simplify right side
    130,393.88x = 13,282,783,952.98
  5. Step 5: Solve for x
    x = 13,282,783,952.98/130,393.88
  6. Step 6: Final answer
    x = 101,866.62

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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.