Home / 190,665.64-285,998.81-78,267.52

Finding the Fourth Proportional to 190,665.64, 285,998.81 and 78,267.52

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Solution

The fourth proportional to 190,665.64, 285,998.81 and 78,267.52 is: 117,401.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,665.64 : 285,998.81 = 78,267.52 : x
  2. Step 2: Convert to fraction form
    190,665.64/285,998.81 = 78,267.52/x
  3. Step 3: Cross multiply
    190,665.64x = 285,998.81 × 78,267.52
  4. Step 4: Simplify right side
    190,665.64x = 22,384,417,581.65
  5. Step 5: Solve for x
    x = 22,384,417,581.65/190,665.64
  6. Step 6: Final answer
    x = 117,401.42

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1.5x scale

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.