Home / 153,757.26-212,185.36-85,772.54

Finding the Fourth Proportional to 153,757.26, 212,185.36 and 85,772.54

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Solution

The fourth proportional to 153,757.26, 212,185.36 and 85,772.54 is: 118,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,757.26 : 212,185.36 = 85,772.54 : x
  2. Step 2: Convert to fraction form
    153,757.26/212,185.36 = 85,772.54/x
  3. Step 3: Cross multiply
    153,757.26x = 212,185.36 × 85,772.54
  4. Step 4: Simplify right side
    153,757.26x = 18,199,677,278.01
  5. Step 5: Solve for x
    x = 18,199,677,278.01/153,757.26
  6. Step 6: Final answer
    x = 118,366.30

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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.