Home / 190,973.78-263,444.98-129,723.12

Finding the Fourth Proportional to 190,973.78, 263,444.98 and 129,723.12

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Solution

The fourth proportional to 190,973.78, 263,444.98 and 129,723.12 is: 178,950.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,973.78 : 263,444.98 = 129,723.12 : x
  2. Step 2: Convert to fraction form
    190,973.78/263,444.98 = 129,723.12/x
  3. Step 3: Cross multiply
    190,973.78x = 263,444.98 × 129,723.12
  4. Step 4: Simplify right side
    190,973.78x = 34,174,904,753.94
  5. Step 5: Solve for x
    x = 34,174,904,753.94/190,973.78
  6. Step 6: Final answer
    x = 178,950.77

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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.