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Finding the Fourth Proportional to 131,889.96, 182,008.26 and 72,273.96

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Solution

The fourth proportional to 131,889.96, 182,008.26 and 72,273.96 is: 99,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,889.96 : 182,008.26 = 72,273.96 : x
  2. Step 2: Convert to fraction form
    131,889.96/182,008.26 = 72,273.96/x
  3. Step 3: Cross multiply
    131,889.96x = 182,008.26 × 72,273.96
  4. Step 4: Simplify right side
    131,889.96x = 13,154,457,702.91
  5. Step 5: Solve for x
    x = 13,154,457,702.91/131,889.96
  6. Step 6: Final answer
    x = 99,738.13

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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.