Home / 134,638.38-185,801.85-77,262.39

Finding the Fourth Proportional to 134,638.38, 185,801.85 and 77,262.39

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Solution

The fourth proportional to 134,638.38, 185,801.85 and 77,262.39 is: 106,622.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,638.38 : 185,801.85 = 77,262.39 : x
  2. Step 2: Convert to fraction form
    134,638.38/185,801.85 = 77,262.39/x
  3. Step 3: Cross multiply
    134,638.38x = 185,801.85 × 77,262.39
  4. Step 4: Simplify right side
    134,638.38x = 14,355,494,997.42
  5. Step 5: Solve for x
    x = 14,355,494,997.42/134,638.38
  6. Step 6: Final answer
    x = 106,622.61

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1.5x scale

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.