Home / 129,503.12-194,281.02-54,623.53

Finding the Fourth Proportional to 129,503.12, 194,281.02 and 54,623.53

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Solution

The fourth proportional to 129,503.12, 194,281.02 and 54,623.53 is: 81,946.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,503.12 : 194,281.02 = 54,623.53 : x
  2. Step 2: Convert to fraction form
    129,503.12/194,281.02 = 54,623.53/x
  3. Step 3: Cross multiply
    129,503.12x = 194,281.02 × 54,623.53
  4. Step 4: Simplify right side
    129,503.12x = 10,612,315,367.25
  5. Step 5: Solve for x
    x = 10,612,315,367.25/129,503.12
  6. Step 6: Final answer
    x = 81,946.41

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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.