Home / 155,476.26-214,519.19-87,480

Finding the Fourth Proportional to 155,476.26, 214,519.19 and 87,480

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Solution

The fourth proportional to 155,476.26, 214,519.19 and 87,480 is: 120,700.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,476.26 : 214,519.19 = 87,480 : x
  2. Step 2: Convert to fraction form
    155,476.26/214,519.19 = 87,480/x
  3. Step 3: Cross multiply
    155,476.26x = 214,519.19 × 87,480
  4. Step 4: Simplify right side
    155,476.26x = 18,766,138,303.80
  5. Step 5: Solve for x
    x = 18,766,138,303.80/155,476.26
  6. Step 6: Final answer
    x = 120,700.99

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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.