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Finding the Fourth Proportional to 146,440.39, 219,409.80 and 79,927.20

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Solution

The fourth proportional to 146,440.39, 219,409.80 and 79,927.20 is: 119,753.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,440.39 : 219,409.80 = 79,927.20 : x
  2. Step 2: Convert to fraction form
    146,440.39/219,409.80 = 79,927.20/x
  3. Step 3: Cross multiply
    146,440.39x = 219,409.80 × 79,927.20
  4. Step 4: Simplify right side
    146,440.39x = 17,536,809,869.51
  5. Step 5: Solve for x
    x = 17,536,809,869.51/146,440.39
  6. Step 6: Final answer
    x = 119,753.91

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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.