Home / 98,123.69-135,375.26-55,657.62

Finding the Fourth Proportional to 98,123.69, 135,375.26 and 55,657.62

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Solution

The fourth proportional to 98,123.69, 135,375.26 and 55,657.62 is: 76,787.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,123.69 : 135,375.26 = 55,657.62 : x
  2. Step 2: Convert to fraction form
    98,123.69/135,375.26 = 55,657.62/x
  3. Step 3: Cross multiply
    98,123.69x = 135,375.26 × 55,657.62
  4. Step 4: Simplify right side
    98,123.69x = 7,534,664,778.48
  5. Step 5: Solve for x
    x = 7,534,664,778.48/98,123.69
  6. Step 6: Final answer
    x = 76,787.42

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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.