Home / 109,917.10-164,875.65-92,809.90

Finding the Fourth Proportional to 109,917.10, 164,875.65 and 92,809.90

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Solution

The fourth proportional to 109,917.10, 164,875.65 and 92,809.90 is: 139,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,917.10 : 164,875.65 = 92,809.90 : x
  2. Step 2: Convert to fraction form
    109,917.10/164,875.65 = 92,809.90/x
  3. Step 3: Cross multiply
    109,917.10x = 164,875.65 × 92,809.90
  4. Step 4: Simplify right side
    109,917.10x = 15,302,092,588.94
  5. Step 5: Solve for x
    x = 15,302,092,588.94/109,917.10
  6. Step 6: Final answer
    x = 139,214.85

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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.