Home / 146,000.20-219,000.30-83,619.40

Finding the Fourth Proportional to 146,000.20, 219,000.30 and 83,619.40

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Solution

The fourth proportional to 146,000.20, 219,000.30 and 83,619.40 is: 125,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,000.20 : 219,000.30 = 83,619.40 : x
  2. Step 2: Convert to fraction form
    146,000.20/219,000.30 = 83,619.40/x
  3. Step 3: Cross multiply
    146,000.20x = 219,000.30 × 83,619.40
  4. Step 4: Simplify right side
    146,000.20x = 18,312,673,685.82
  5. Step 5: Solve for x
    x = 18,312,673,685.82/146,000.20
  6. Step 6: Final answer
    x = 125,429.10

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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.