Home / 155,492.06-214,579.94-87,510.38

Finding the Fourth Proportional to 155,492.06, 214,579.94 and 87,510.38

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Solution

The fourth proportional to 155,492.06, 214,579.94 and 87,510.38 is: 120,764.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,492.06 : 214,579.94 = 87,510.38 : x
  2. Step 2: Convert to fraction form
    155,492.06/214,579.94 = 87,510.38/x
  3. Step 3: Cross multiply
    155,492.06x = 214,579.94 × 87,510.38
  4. Step 4: Simplify right side
    155,492.06x = 18,777,970,579.33
  5. Step 5: Solve for x
    x = 18,777,970,579.33/155,492.06
  6. Step 6: Final answer
    x = 120,764.82

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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.