Home / 135,538.92-187,051.20-75,108.30

Finding the Fourth Proportional to 135,538.92, 187,051.20 and 75,108.30

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Solution

The fourth proportional to 135,538.92, 187,051.20 and 75,108.30 is: 103,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,538.92 : 187,051.20 = 75,108.30 : x
  2. Step 2: Convert to fraction form
    135,538.92/187,051.20 = 75,108.30/x
  3. Step 3: Cross multiply
    135,538.92x = 187,051.20 × 75,108.30
  4. Step 4: Simplify right side
    135,538.92x = 14,049,097,644.96
  5. Step 5: Solve for x
    x = 14,049,097,644.96/135,538.92
  6. Step 6: Final answer
    x = 103,653.60

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1.5x scale

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.