Home / 115,336.40-173,134.20-89,157.20

Finding the Fourth Proportional to 115,336.40, 173,134.20 and 89,157.20

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Solution

The fourth proportional to 115,336.40, 173,134.20 and 89,157.20 is: 133,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,336.40 : 173,134.20 = 89,157.20 : x
  2. Step 2: Convert to fraction form
    115,336.40/173,134.20 = 89,157.20/x
  3. Step 3: Cross multiply
    115,336.40x = 173,134.20 × 89,157.20
  4. Step 4: Simplify right side
    115,336.40x = 15,436,160,496.24
  5. Step 5: Solve for x
    x = 15,436,160,496.24/115,336.40
  6. Step 6: Final answer
    x = 133,835.98

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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.