Home / 146,285.40-201,735.18-100,890.84

Finding the Fourth Proportional to 146,285.40, 201,735.18 and 100,890.84

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Solution

The fourth proportional to 146,285.40, 201,735.18 and 100,890.84 is: 139,133.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,285.40 : 201,735.18 = 100,890.84 : x
  2. Step 2: Convert to fraction form
    146,285.40/201,735.18 = 100,890.84/x
  3. Step 3: Cross multiply
    146,285.40x = 201,735.18 × 100,890.84
  4. Step 4: Simplify right side
    146,285.40x = 20,353,231,767.75
  5. Step 5: Solve for x
    x = 20,353,231,767.75/146,285.40
  6. Step 6: Final answer
    x = 139,133.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.