Home / 157,231.80-216,974.97-85,611.36

Finding the Fourth Proportional to 157,231.80, 216,974.97 and 85,611.36

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Solution

The fourth proportional to 157,231.80, 216,974.97 and 85,611.36 is: 118,141.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,231.80 : 216,974.97 = 85,611.36 : x
  2. Step 2: Convert to fraction form
    157,231.80/216,974.97 = 85,611.36/x
  3. Step 3: Cross multiply
    157,231.80x = 216,974.97 × 85,611.36
  4. Step 4: Simplify right side
    157,231.80x = 18,575,522,267.66
  5. Step 5: Solve for x
    x = 18,575,522,267.66/157,231.80
  6. Step 6: Final answer
    x = 118,141.00

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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.