Home / 98,857.20-148,285.80-75,237.60

Finding the Fourth Proportional to 98,857.20, 148,285.80 and 75,237.60

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Solution

The fourth proportional to 98,857.20, 148,285.80 and 75,237.60 is: 112,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,857.20 : 148,285.80 = 75,237.60 : x
  2. Step 2: Convert to fraction form
    98,857.20/148,285.80 = 75,237.60/x
  3. Step 3: Cross multiply
    98,857.20x = 148,285.80 × 75,237.60
  4. Step 4: Simplify right side
    98,857.20x = 11,156,667,706.08
  5. Step 5: Solve for x
    x = 11,156,667,706.08/98,857.20
  6. Step 6: Final answer
    x = 112,856.40

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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.