Home / 115,915.40-174,002.70-89,736.20

Finding the Fourth Proportional to 115,915.40, 174,002.70 and 89,736.20

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Solution

The fourth proportional to 115,915.40, 174,002.70 and 89,736.20 is: 134,704.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,915.40 : 174,002.70 = 89,736.20 : x
  2. Step 2: Convert to fraction form
    115,915.40/174,002.70 = 89,736.20/x
  3. Step 3: Cross multiply
    115,915.40x = 174,002.70 × 89,736.20
  4. Step 4: Simplify right side
    115,915.40x = 15,614,341,087.74
  5. Step 5: Solve for x
    x = 15,614,341,087.74/115,915.40
  6. Step 6: Final answer
    x = 134,704.63

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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.