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Finding the Fourth Proportional to 129,657.65, 178,520.37 and 110,238.37

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Solution

The fourth proportional to 129,657.65, 178,520.37 and 110,238.37 is: 151,782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,657.65 : 178,520.37 = 110,238.37 : x
  2. Step 2: Convert to fraction form
    129,657.65/178,520.37 = 110,238.37/x
  3. Step 3: Cross multiply
    129,657.65x = 178,520.37 × 110,238.37
  4. Step 4: Simplify right side
    129,657.65x = 19,679,794,600.60
  5. Step 5: Solve for x
    x = 19,679,794,600.60/129,657.65
  6. Step 6: Final answer
    x = 151,782.75

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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.