Home / 135,563.10-187,090.20-75,153.30

Finding the Fourth Proportional to 135,563.10, 187,090.20 and 75,153.30

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Solution

The fourth proportional to 135,563.10, 187,090.20 and 75,153.30 is: 103,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,563.10 : 187,090.20 = 75,153.30 : x
  2. Step 2: Convert to fraction form
    135,563.10/187,090.20 = 75,153.30/x
  3. Step 3: Cross multiply
    135,563.10x = 187,090.20 × 75,153.30
  4. Step 4: Simplify right side
    135,563.10x = 14,060,445,927.66
  5. Step 5: Solve for x
    x = 14,060,445,927.66/135,563.10
  6. Step 6: Final answer
    x = 103,718.83

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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.