Home / 127,656.04-191,198.92-92,515

Finding the Fourth Proportional to 127,656.04, 191,198.92 and 92,515

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Solution

The fourth proportional to 127,656.04, 191,198.92 and 92,515 is: 138,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,656.04 : 191,198.92 = 92,515 : x
  2. Step 2: Convert to fraction form
    127,656.04/191,198.92 = 92,515/x
  3. Step 3: Cross multiply
    127,656.04x = 191,198.92 × 92,515
  4. Step 4: Simplify right side
    127,656.04x = 17,688,768,083.80
  5. Step 5: Solve for x
    x = 17,688,768,083.80/127,656.04
  6. Step 6: Final answer
    x = 138,565.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.