Home / 149,316.30-206,052.93-85,649.90

Finding the Fourth Proportional to 149,316.30, 206,052.93 and 85,649.90

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Solution

The fourth proportional to 149,316.30, 206,052.93 and 85,649.90 is: 118,194.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,316.30 : 206,052.93 = 85,649.90 : x
  2. Step 2: Convert to fraction form
    149,316.30/206,052.93 = 85,649.90/x
  3. Step 3: Cross multiply
    149,316.30x = 206,052.93 × 85,649.90
  4. Step 4: Simplify right side
    149,316.30x = 17,648,411,818.94
  5. Step 5: Solve for x
    x = 17,648,411,818.94/149,316.30
  6. Step 6: Final answer
    x = 118,194.81

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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.