Home / 129,300.94-194,132.90-66,166.37

Finding the Fourth Proportional to 129,300.94, 194,132.90 and 66,166.37

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Solution

The fourth proportional to 129,300.94, 194,132.90 and 66,166.37 is: 99,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,300.94 : 194,132.90 = 66,166.37 : x
  2. Step 2: Convert to fraction form
    129,300.94/194,132.90 = 66,166.37/x
  3. Step 3: Cross multiply
    129,300.94x = 194,132.90 × 66,166.37
  4. Step 4: Simplify right side
    129,300.94x = 12,845,069,213.32
  5. Step 5: Solve for x
    x = 12,845,069,213.32/129,300.94
  6. Step 6: Final answer
    x = 99,342.43

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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.