Home / 87,646.40-131,469.60-70,150.40

Finding the Fourth Proportional to 87,646.40, 131,469.60 and 70,150.40

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Solution

The fourth proportional to 87,646.40, 131,469.60 and 70,150.40 is: 105,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,646.40 : 131,469.60 = 70,150.40 : x
  2. Step 2: Convert to fraction form
    87,646.40/131,469.60 = 70,150.40/x
  3. Step 3: Cross multiply
    87,646.40x = 131,469.60 × 70,150.40
  4. Step 4: Simplify right side
    87,646.40x = 9,222,645,027.84
  5. Step 5: Solve for x
    x = 9,222,645,027.84/87,646.40
  6. Step 6: Final answer
    x = 105,225.60

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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.