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Finding the Fourth Proportional to 155,219.63, 214,203.29 and 88,151.63

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Solution

The fourth proportional to 155,219.63, 214,203.29 and 88,151.63 is: 121,649.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,219.63 : 214,203.29 = 88,151.63 : x
  2. Step 2: Convert to fraction form
    155,219.63/214,203.29 = 88,151.63/x
  3. Step 3: Cross multiply
    155,219.63x = 214,203.29 × 88,151.63
  4. Step 4: Simplify right side
    155,219.63x = 18,882,367,653.09
  5. Step 5: Solve for x
    x = 18,882,367,653.09/155,219.63
  6. Step 6: Final answer
    x = 121,649.36

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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.