Home / 101,919.64-152,905.86-38,740.84

Finding the Fourth Proportional to 101,919.64, 152,905.86 and 38,740.84

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Solution

The fourth proportional to 101,919.64, 152,905.86 and 38,740.84 is: 58,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,919.64 : 152,905.86 = 38,740.84 : x
  2. Step 2: Convert to fraction form
    101,919.64/152,905.86 = 38,740.84/x
  3. Step 3: Cross multiply
    101,919.64x = 152,905.86 × 38,740.84
  4. Step 4: Simplify right side
    101,919.64x = 5,923,701,457.32
  5. Step 5: Solve for x
    x = 5,923,701,457.32/101,919.64
  6. Step 6: Final answer
    x = 58,121.29

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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.