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Finding the Fourth Proportional to 104,389.72, 156,584.58 and 30,517.72

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Solution

The fourth proportional to 104,389.72, 156,584.58 and 30,517.72 is: 45,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,389.72 : 156,584.58 = 30,517.72 : x
  2. Step 2: Convert to fraction form
    104,389.72/156,584.58 = 30,517.72/x
  3. Step 3: Cross multiply
    104,389.72x = 156,584.58 × 30,517.72
  4. Step 4: Simplify right side
    104,389.72x = 4,778,604,368.76
  5. Step 5: Solve for x
    x = 4,778,604,368.76/104,389.72
  6. Step 6: Final answer
    x = 45,776.58

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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.