Home / 129,503.49-194,281.59-54,623.90

Finding the Fourth Proportional to 129,503.49, 194,281.59 and 54,623.90

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Solution

The fourth proportional to 129,503.49, 194,281.59 and 54,623.90 is: 81,946.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,503.49 : 194,281.59 = 54,623.90 : x
  2. Step 2: Convert to fraction form
    129,503.49/194,281.59 = 54,623.90/x
  3. Step 3: Cross multiply
    129,503.49x = 194,281.59 × 54,623.90
  4. Step 4: Simplify right side
    129,503.49x = 10,612,417,172.59
  5. Step 5: Solve for x
    x = 10,612,417,172.59/129,503.49
  6. Step 6: Final answer
    x = 81,946.96

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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.