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Finding the Fourth Proportional to 146,140.60, 219,210.90 and 40,945.90

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Solution

The fourth proportional to 146,140.60, 219,210.90 and 40,945.90 is: 61,418.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,140.60 : 219,210.90 = 40,945.90 : x
  2. Step 2: Convert to fraction form
    146,140.60/219,210.90 = 40,945.90/x
  3. Step 3: Cross multiply
    146,140.60x = 219,210.90 × 40,945.90
  4. Step 4: Simplify right side
    146,140.60x = 8,975,787,590.31
  5. Step 5: Solve for x
    x = 8,975,787,590.31/146,140.60
  6. Step 6: Final answer
    x = 61,418.85

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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.