Home / 130,247.20-179,730.42-72,883.55

Finding the Fourth Proportional to 130,247.20, 179,730.42 and 72,883.55

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Solution

The fourth proportional to 130,247.20, 179,730.42 and 72,883.55 is: 100,573.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,247.20 : 179,730.42 = 72,883.55 : x
  2. Step 2: Convert to fraction form
    130,247.20/179,730.42 = 72,883.55/x
  3. Step 3: Cross multiply
    130,247.20x = 179,730.42 × 72,883.55
  4. Step 4: Simplify right side
    130,247.20x = 13,099,391,052.59
  5. Step 5: Solve for x
    x = 13,099,391,052.59/130,247.20
  6. Step 6: Final answer
    x = 100,573.31

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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.