Home / 115,811.70-173,425.95-76,154.10

Finding the Fourth Proportional to 115,811.70, 173,425.95 and 76,154.10

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Solution

The fourth proportional to 115,811.70, 173,425.95 and 76,154.10 is: 114,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,811.70 : 173,425.95 = 76,154.10 : x
  2. Step 2: Convert to fraction form
    115,811.70/173,425.95 = 76,154.10/x
  3. Step 3: Cross multiply
    115,811.70x = 173,425.95 × 76,154.10
  4. Step 4: Simplify right side
    115,811.70x = 13,207,097,138.90
  5. Step 5: Solve for x
    x = 13,207,097,138.90/115,811.70
  6. Step 6: Final answer
    x = 114,039.40

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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.