Home / 109,929.15-164,401.65-92,214.45

Finding the Fourth Proportional to 109,929.15, 164,401.65 and 92,214.45

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Solution

The fourth proportional to 109,929.15, 164,401.65 and 92,214.45 is: 137,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,929.15 : 164,401.65 = 92,214.45 : x
  2. Step 2: Convert to fraction form
    109,929.15/164,401.65 = 92,214.45/x
  3. Step 3: Cross multiply
    109,929.15x = 164,401.65 × 92,214.45
  4. Step 4: Simplify right side
    109,929.15x = 15,160,207,733.84
  5. Step 5: Solve for x
    x = 15,160,207,733.84/109,929.15
  6. Step 6: Final answer
    x = 137,908.90

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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.