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Finding the Fourth Proportional to 129,871.56, 194,798.70 and 50,999.16

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Solution

The fourth proportional to 129,871.56, 194,798.70 and 50,999.16 is: 76,495.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,871.56 : 194,798.70 = 50,999.16 : x
  2. Step 2: Convert to fraction form
    129,871.56/194,798.70 = 50,999.16/x
  3. Step 3: Cross multiply
    129,871.56x = 194,798.70 × 50,999.16
  4. Step 4: Simplify right side
    129,871.56x = 9,934,570,069.09
  5. Step 5: Solve for x
    x = 9,934,570,069.09/129,871.56
  6. Step 6: Final answer
    x = 76,495.35

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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.