Home / 153,110.56-211,286-85,127.44

Finding the Fourth Proportional to 153,110.56, 211,286 and 85,127.44

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Solution

The fourth proportional to 153,110.56, 211,286 and 85,127.44 is: 117,472.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,110.56 : 211,286 = 85,127.44 : x
  2. Step 2: Convert to fraction form
    153,110.56/211,286 = 85,127.44/x
  3. Step 3: Cross multiply
    153,110.56x = 211,286 × 85,127.44
  4. Step 4: Simplify right side
    153,110.56x = 17,986,236,287.84
  5. Step 5: Solve for x
    x = 17,986,236,287.84/153,110.56
  6. Step 6: Final answer
    x = 117,472.21

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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.