Home / 85,349.35-128,304.46-79,183.83

Finding the Fourth Proportional to 85,349.35, 128,304.46 and 79,183.83

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Solution

The fourth proportional to 85,349.35, 128,304.46 and 79,183.83 is: 119,035.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,349.35 : 128,304.46 = 79,183.83 : x
  2. Step 2: Convert to fraction form
    85,349.35/128,304.46 = 79,183.83/x
  3. Step 3: Cross multiply
    85,349.35x = 128,304.46 × 79,183.83
  4. Step 4: Simplify right side
    85,349.35x = 10,159,637,961.88
  5. Step 5: Solve for x
    x = 10,159,637,961.88/85,349.35
  6. Step 6: Final answer
    x = 119,035.92

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1.5x scale

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.