Home / 256,923.10-385,365.45-107,124.70

Finding the Fourth Proportional to 256,923.10, 385,365.45 and 107,124.70

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Solution

The fourth proportional to 256,923.10, 385,365.45 and 107,124.70 is: 160,679.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,923.10 : 385,365.45 = 107,124.70 : x
  2. Step 2: Convert to fraction form
    256,923.10/385,365.45 = 107,124.70/x
  3. Step 3: Cross multiply
    256,923.10x = 385,365.45 × 107,124.70
  4. Step 4: Simplify right side
    256,923.10x = 41,282,158,221.62
  5. Step 5: Solve for x
    x = 41,282,158,221.62/256,923.10
  6. Step 6: Final answer
    x = 160,679.04

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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.