Home / 155,456.10-214,529.40-88,388.10

Finding the Fourth Proportional to 155,456.10, 214,529.40 and 88,388.10

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Solution

The fourth proportional to 155,456.10, 214,529.40 and 88,388.10 is: 121,975.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,456.10 : 214,529.40 = 88,388.10 : x
  2. Step 2: Convert to fraction form
    155,456.10/214,529.40 = 88,388.10/x
  3. Step 3: Cross multiply
    155,456.10x = 214,529.40 × 88,388.10
  4. Step 4: Simplify right side
    155,456.10x = 18,961,846,060.14
  5. Step 5: Solve for x
    x = 18,961,846,060.14/155,456.10
  6. Step 6: Final answer
    x = 121,975.57

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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.