Home / 129,880.89-194,763.02-59,780.25

Finding the Fourth Proportional to 129,880.89, 194,763.02 and 59,780.25

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Solution

The fourth proportional to 129,880.89, 194,763.02 and 59,780.25 is: 89,643.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,880.89 : 194,763.02 = 59,780.25 : x
  2. Step 2: Convert to fraction form
    129,880.89/194,763.02 = 59,780.25/x
  3. Step 3: Cross multiply
    129,880.89x = 194,763.02 × 59,780.25
  4. Step 4: Simplify right side
    129,880.89x = 11,642,981,727.45
  5. Step 5: Solve for x
    x = 11,642,981,727.45/129,880.89
  6. Step 6: Final answer
    x = 89,643.53

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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.