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Finding the Fourth Proportional to 104,071.70, 156,107.55 and 51,518.10

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Solution

The fourth proportional to 104,071.70, 156,107.55 and 51,518.10 is: 77,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,071.70 : 156,107.55 = 51,518.10 : x
  2. Step 2: Convert to fraction form
    104,071.70/156,107.55 = 51,518.10/x
  3. Step 3: Cross multiply
    104,071.70x = 156,107.55 × 51,518.10
  4. Step 4: Simplify right side
    104,071.70x = 8,042,364,371.66
  5. Step 5: Solve for x
    x = 8,042,364,371.66/104,071.70
  6. Step 6: Final answer
    x = 77,277.15

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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.