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Finding the Fourth Proportional to 146,117.70, 219,025.35 and 79,416.90

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Solution

The fourth proportional to 146,117.70, 219,025.35 and 79,416.90 is: 119,043.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,117.70 : 219,025.35 = 79,416.90 : x
  2. Step 2: Convert to fraction form
    146,117.70/219,025.35 = 79,416.90/x
  3. Step 3: Cross multiply
    146,117.70x = 219,025.35 × 79,416.90
  4. Step 4: Simplify right side
    146,117.70x = 17,394,314,318.42
  5. Step 5: Solve for x
    x = 17,394,314,318.42/146,117.70
  6. Step 6: Final answer
    x = 119,043.17

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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.