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Finding the Fourth Proportional to 156,559.50, 216,052.65 and 84,939.84

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Solution

The fourth proportional to 156,559.50, 216,052.65 and 84,939.84 is: 117,217.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,559.50 : 216,052.65 = 84,939.84 : x
  2. Step 2: Convert to fraction form
    156,559.50/216,052.65 = 84,939.84/x
  3. Step 3: Cross multiply
    156,559.50x = 216,052.65 × 84,939.84
  4. Step 4: Simplify right side
    156,559.50x = 18,351,477,522.58
  5. Step 5: Solve for x
    x = 18,351,477,522.58/156,559.50
  6. Step 6: Final answer
    x = 117,217.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.