Home / 95,904.30-143,856.45-78,189.60

Finding the Fourth Proportional to 95,904.30, 143,856.45 and 78,189.60

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Solution

The fourth proportional to 95,904.30, 143,856.45 and 78,189.60 is: 117,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,904.30 : 143,856.45 = 78,189.60 : x
  2. Step 2: Convert to fraction form
    95,904.30/143,856.45 = 78,189.60/x
  3. Step 3: Cross multiply
    95,904.30x = 143,856.45 × 78,189.60
  4. Step 4: Simplify right side
    95,904.30x = 11,248,078,282.92
  5. Step 5: Solve for x
    x = 11,248,078,282.92/95,904.30
  6. Step 6: Final answer
    x = 117,284.40

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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.