Home / 135,530.91-187,043.37-75,107.34

Finding the Fourth Proportional to 135,530.91, 187,043.37 and 75,107.34

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Solution

The fourth proportional to 135,530.91, 187,043.37 and 75,107.34 is: 103,654.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,530.91 : 187,043.37 = 75,107.34 : x
  2. Step 2: Convert to fraction form
    135,530.91/187,043.37 = 75,107.34/x
  3. Step 3: Cross multiply
    135,530.91x = 187,043.37 × 75,107.34
  4. Step 4: Simplify right side
    135,530.91x = 14,048,329,985.34
  5. Step 5: Solve for x
    x = 14,048,329,985.34/135,530.91
  6. Step 6: Final answer
    x = 103,654.07

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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.