Home / 155,244.54-214,243.55-87,261.31

Finding the Fourth Proportional to 155,244.54, 214,243.55 and 87,261.31

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Solution

The fourth proportional to 155,244.54, 214,243.55 and 87,261.31 is: 120,424.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,244.54 : 214,243.55 = 87,261.31 : x
  2. Step 2: Convert to fraction form
    155,244.54/214,243.55 = 87,261.31/x
  3. Step 3: Cross multiply
    155,244.54x = 214,243.55 × 87,261.31
  4. Step 4: Simplify right side
    155,244.54x = 18,695,172,990.78
  5. Step 5: Solve for x
    x = 18,695,172,990.78/155,244.54
  6. Step 6: Final answer
    x = 120,424.03

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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.