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Finding the Fourth Proportional to 130,292.88, 179,811 and 73,709.52

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Solution

The fourth proportional to 130,292.88, 179,811 and 73,709.52 is: 101,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,292.88 : 179,811 = 73,709.52 : x
  2. Step 2: Convert to fraction form
    130,292.88/179,811 = 73,709.52/x
  3. Step 3: Cross multiply
    130,292.88x = 179,811 × 73,709.52
  4. Step 4: Simplify right side
    130,292.88x = 13,253,782,500.72
  5. Step 5: Solve for x
    x = 13,253,782,500.72/130,292.88
  6. Step 6: Final answer
    x = 101,723.00

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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.