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Finding the Fourth Proportional to 104,465.70, 156,698.55 and 70,785.90

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Solution

The fourth proportional to 104,465.70, 156,698.55 and 70,785.90 is: 106,178.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,465.70 : 156,698.55 = 70,785.90 : x
  2. Step 2: Convert to fraction form
    104,465.70/156,698.55 = 70,785.90/x
  3. Step 3: Cross multiply
    104,465.70x = 156,698.55 × 70,785.90
  4. Step 4: Simplify right side
    104,465.70x = 11,092,047,890.45
  5. Step 5: Solve for x
    x = 11,092,047,890.45/104,465.70
  6. Step 6: Final answer
    x = 106,178.85

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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.