Home / 119,259.92-164,452.60-100,126.51

Finding the Fourth Proportional to 119,259.92, 164,452.60 and 100,126.51

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Solution

The fourth proportional to 119,259.92, 164,452.60 and 100,126.51 is: 138,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,259.92 : 164,452.60 = 100,126.51 : x
  2. Step 2: Convert to fraction form
    119,259.92/164,452.60 = 100,126.51/x
  3. Step 3: Cross multiply
    119,259.92x = 164,452.60 × 100,126.51
  4. Step 4: Simplify right side
    119,259.92x = 16,466,064,898.43
  5. Step 5: Solve for x
    x = 16,466,064,898.43/119,259.92
  6. Step 6: Final answer
    x = 138,068.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.