Home / 146,438.40-219,220.20-87,243.60

Finding the Fourth Proportional to 146,438.40, 219,220.20 and 87,243.60

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Solution

The fourth proportional to 146,438.40, 219,220.20 and 87,243.60 is: 130,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,438.40 : 219,220.20 = 87,243.60 : x
  2. Step 2: Convert to fraction form
    146,438.40/219,220.20 = 87,243.60/x
  3. Step 3: Cross multiply
    146,438.40x = 219,220.20 × 87,243.60
  4. Step 4: Simplify right side
    146,438.40x = 19,125,559,440.72
  5. Step 5: Solve for x
    x = 19,125,559,440.72/146,438.40
  6. Step 6: Final answer
    x = 130,604.81

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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.