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Finding the Fourth Proportional to 146,555.40, 219,833.10 and 129,059.40

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Solution

The fourth proportional to 146,555.40, 219,833.10 and 129,059.40 is: 193,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,555.40 : 219,833.10 = 129,059.40 : x
  2. Step 2: Convert to fraction form
    146,555.40/219,833.10 = 129,059.40/x
  3. Step 3: Cross multiply
    146,555.40x = 219,833.10 × 129,059.40
  4. Step 4: Simplify right side
    146,555.40x = 28,371,527,986.14
  5. Step 5: Solve for x
    x = 28,371,527,986.14/146,555.40
  6. Step 6: Final answer
    x = 193,589.10

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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.