Home / 115,884.40-173,956.20-89,705.20

Finding the Fourth Proportional to 115,884.40, 173,956.20 and 89,705.20

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Solution

The fourth proportional to 115,884.40, 173,956.20 and 89,705.20 is: 134,658.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,884.40 : 173,956.20 = 89,705.20 : x
  2. Step 2: Convert to fraction form
    115,884.40/173,956.20 = 89,705.20/x
  3. Step 3: Cross multiply
    115,884.40x = 173,956.20 × 89,705.20
  4. Step 4: Simplify right side
    115,884.40x = 15,604,775,712.24
  5. Step 5: Solve for x
    x = 15,604,775,712.24/115,884.40
  6. Step 6: Final answer
    x = 134,658.12

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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.