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Finding the Fourth Proportional to 131,099.49, 180,479.90 and 125,074.07

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Solution

The fourth proportional to 131,099.49, 180,479.90 and 125,074.07 is: 172,184.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,099.49 : 180,479.90 = 125,074.07 : x
  2. Step 2: Convert to fraction form
    131,099.49/180,479.90 = 125,074.07/x
  3. Step 3: Cross multiply
    131,099.49x = 180,479.90 × 125,074.07
  4. Step 4: Simplify right side
    131,099.49x = 22,573,356,044.94
  5. Step 5: Solve for x
    x = 22,573,356,044.94/131,099.49
  6. Step 6: Final answer
    x = 172,184.93

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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.