Home / 153,236.43-211,463.19-85,252.05

Finding the Fourth Proportional to 153,236.43, 211,463.19 and 85,252.05

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Solution

The fourth proportional to 153,236.43, 211,463.19 and 85,252.05 is: 117,646.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,236.43 : 211,463.19 = 85,252.05 : x
  2. Step 2: Convert to fraction form
    153,236.43/211,463.19 = 85,252.05/x
  3. Step 3: Cross multiply
    153,236.43x = 211,463.19 × 85,252.05
  4. Step 4: Simplify right side
    153,236.43x = 18,027,670,447.04
  5. Step 5: Solve for x
    x = 18,027,670,447.04/153,236.43
  6. Step 6: Final answer
    x = 117,646.11

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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.