Home / 155,753.34-214,924.98-87,759.10

Finding the Fourth Proportional to 155,753.34, 214,924.98 and 87,759.10

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Solution

The fourth proportional to 155,753.34, 214,924.98 and 87,759.10 is: 121,099.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,753.34 : 214,924.98 = 87,759.10 : x
  2. Step 2: Convert to fraction form
    155,753.34/214,924.98 = 87,759.10/x
  3. Step 3: Cross multiply
    155,753.34x = 214,924.98 × 87,759.10
  4. Step 4: Simplify right side
    155,753.34x = 18,861,622,812.32
  5. Step 5: Solve for x
    x = 18,861,622,812.32/155,753.34
  6. Step 6: Final answer
    x = 121,099.32

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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.