Home / 135,509.58-187,156.71-92,415.42

Finding the Fourth Proportional to 135,509.58, 187,156.71 and 92,415.42

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Solution

The fourth proportional to 135,509.58, 187,156.71 and 92,415.42 is: 127,637.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,509.58 : 187,156.71 = 92,415.42 : x
  2. Step 2: Convert to fraction form
    135,509.58/187,156.71 = 92,415.42/x
  3. Step 3: Cross multiply
    135,509.58x = 187,156.71 × 92,415.42
  4. Step 4: Simplify right side
    135,509.58x = 17,296,165,960.47
  5. Step 5: Solve for x
    x = 17,296,165,960.47/135,509.58
  6. Step 6: Final answer
    x = 127,637.96

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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.