Home / 190,406.28-285,577.08-89,214.84

Finding the Fourth Proportional to 190,406.28, 285,577.08 and 89,214.84

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Solution

The fourth proportional to 190,406.28, 285,577.08 and 89,214.84 is: 133,807.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,406.28 : 285,577.08 = 89,214.84 : x
  2. Step 2: Convert to fraction form
    190,406.28/285,577.08 = 89,214.84/x
  3. Step 3: Cross multiply
    190,406.28x = 285,577.08 × 89,214.84
  4. Step 4: Simplify right side
    190,406.28x = 25,477,713,499.87
  5. Step 5: Solve for x
    x = 25,477,713,499.87/190,406.28
  6. Step 6: Final answer
    x = 133,807.11

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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.