Home / 190,434.08-285,585.28-78,082.40

Finding the Fourth Proportional to 190,434.08, 285,585.28 and 78,082.40

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Solution

The fourth proportional to 190,434.08, 285,585.28 and 78,082.40 is: 117,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,434.08 : 285,585.28 = 78,082.40 : x
  2. Step 2: Convert to fraction form
    190,434.08/285,585.28 = 78,082.40/x
  3. Step 3: Cross multiply
    190,434.08x = 285,585.28 × 78,082.40
  4. Step 4: Simplify right side
    190,434.08x = 22,299,184,067.07
  5. Step 5: Solve for x
    x = 22,299,184,067.07/190,434.08
  6. Step 6: Final answer
    x = 117,096.60

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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.