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Finding the Fourth Proportional to 104,666.60, 156,999.90 and 103,682.45

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Solution

The fourth proportional to 104,666.60, 156,999.90 and 103,682.45 is: 155,523.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,666.60 : 156,999.90 = 103,682.45 : x
  2. Step 2: Convert to fraction form
    104,666.60/156,999.90 = 103,682.45/x
  3. Step 3: Cross multiply
    104,666.60x = 156,999.90 × 103,682.45
  4. Step 4: Simplify right side
    104,666.60x = 16,278,134,281.76
  5. Step 5: Solve for x
    x = 16,278,134,281.76/104,666.60
  6. Step 6: Final answer
    x = 155,523.68

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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.