Home / 115,865.40-173,636.10-92,213.40

Finding the Fourth Proportional to 115,865.40, 173,636.10 and 92,213.40

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Solution

The fourth proportional to 115,865.40, 173,636.10 and 92,213.40 is: 138,191.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,865.40 : 173,636.10 = 92,213.40 : x
  2. Step 2: Convert to fraction form
    115,865.40/173,636.10 = 92,213.40/x
  3. Step 3: Cross multiply
    115,865.40x = 173,636.10 × 92,213.40
  4. Step 4: Simplify right side
    115,865.40x = 16,011,575,143.74
  5. Step 5: Solve for x
    x = 16,011,575,143.74/115,865.40
  6. Step 6: Final answer
    x = 138,191.17

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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.