Home / 146,122.20-219,032.10-79,421.40

Finding the Fourth Proportional to 146,122.20, 219,032.10 and 79,421.40

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Solution

The fourth proportional to 146,122.20, 219,032.10 and 79,421.40 is: 119,049.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,122.20 : 219,032.10 = 79,421.40 : x
  2. Step 2: Convert to fraction form
    146,122.20/219,032.10 = 79,421.40/x
  3. Step 3: Cross multiply
    146,122.20x = 219,032.10 × 79,421.40
  4. Step 4: Simplify right side
    146,122.20x = 17,395,836,026.94
  5. Step 5: Solve for x
    x = 17,395,836,026.94/146,122.20
  6. Step 6: Final answer
    x = 119,049.92

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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.