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Finding the Fourth Proportional to 131,060.89, 180,820.52 and 106,820.22

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Solution

The fourth proportional to 131,060.89, 180,820.52 and 106,820.22 is: 147,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,060.89 : 180,820.52 = 106,820.22 : x
  2. Step 2: Convert to fraction form
    131,060.89/180,820.52 = 106,820.22/x
  3. Step 3: Cross multiply
    131,060.89x = 180,820.52 × 106,820.22
  4. Step 4: Simplify right side
    131,060.89x = 19,315,287,254.35
  5. Step 5: Solve for x
    x = 19,315,287,254.35/131,060.89
  6. Step 6: Final answer
    x = 147,376.44

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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.