Home / 125,776.20-188,664.30-42,670.92

Finding the Fourth Proportional to 125,776.20, 188,664.30 and 42,670.92

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Solution

The fourth proportional to 125,776.20, 188,664.30 and 42,670.92 is: 64,006.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,776.20 : 188,664.30 = 42,670.92 : x
  2. Step 2: Convert to fraction form
    125,776.20/188,664.30 = 42,670.92/x
  3. Step 3: Cross multiply
    125,776.20x = 188,664.30 × 42,670.92
  4. Step 4: Simplify right side
    125,776.20x = 8,050,479,252.16
  5. Step 5: Solve for x
    x = 8,050,479,252.16/125,776.20
  6. Step 6: Final answer
    x = 64,006.38

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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.