Home / 149,530.90-206,357.25-85,881.46

Finding the Fourth Proportional to 149,530.90, 206,357.25 and 85,881.46

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Solution

The fourth proportional to 149,530.90, 206,357.25 and 85,881.46 is: 118,519.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,530.90 : 206,357.25 = 85,881.46 : x
  2. Step 2: Convert to fraction form
    149,530.90/206,357.25 = 85,881.46/x
  3. Step 3: Cross multiply
    149,530.90x = 206,357.25 × 85,881.46
  4. Step 4: Simplify right side
    149,530.90x = 17,722,261,911.59
  5. Step 5: Solve for x
    x = 17,722,261,911.59/149,530.90
  6. Step 6: Final answer
    x = 118,519.06

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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.